You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Stephanie Thompson.

ASSISTANT: How can I help you?

USER: I have to attend my sister's wedding, could you please help me with booking a flight ticket from ATL?

ASSISTANT: May I know your desired travel dates please?

USER: I would like to take off on 04/13 and return on 04/15.

ASSISTANT: Can I know your preferred destination airport code please?

USER: My destination airport code is DFW.

ASSISTANT: Please wait a while.

USER: Sure, take your time.

ASSISTANT: There is no flight on your desired travel dates.

USER: That's ok, I will find an another alternate way to complete my trip.

ASSISTANT: Thank you for reaching us.

USER: Thank you for the information.