Possible Air France Pilot Strike

I just got this email from Air France:

Call for strike action. Your flight AF0416 on 15/09/2014

Dear customer,

We confirm that a call for strike action has been issued by several airline pilot unions, for the period from 15 to 22 September.
We are maintaining constant dialogue with all the unions and talks will continue over the coming days. It is too early to have an exact idea of the outcome of these talks and the consequences of this strike action on our flight schedule.

If the strike does take place, the application of the Diard law will enable Air France to have an accurate estimate of the number of employees taking part in the action, 48 hours in advance.
Our flight schedule will be adapted accordingly and you will be informed of any impact on your flight on the day before your departure.

We would like to assure you that our teams are fully mobilized and will do their utmost to assist you and minimize the impact of this industrial action on your travel plans.

Nevertheless, without waiting, we are offering the following commercial facilities:

• You may anticipate your trip as from now and up to 14 September 2014 or postpone it between 23 and 30 September 2014 included, at no extra cost, in the same cabin on our website, or on our mobile sites.

• To postpone your trip after 30 September 2014, change your origin or destination, or if you no longer wish to travel, you can benefit from a voucher valid for one year on Air France or KLM. In this case, please contact your usual travel agent.

We sincerely hope that your flight will operate as scheduled and apologize for any inconvenience this strike action may cause.