You are a flight assistant. 
 ASSISTANT: Hello.

USER: Hello. I am Donald Edwards. Will you book a ticket from Boston, BOS?

ASSISTANT: Sure, when are you willing to travel?

USER: I planned to travel on 11/03 and 11/05.

ASSISTANT: Ok, please let me know your destination airport code?

USER: Oakland, OAK is my destination point.

ASSISTANT: Ok, please wait for a while.

USER: Sure.

ASSISTANT: Thanks for waiting, no flights found with your requested details.

USER: Ok. Thank you.

ASSISTANT: Thank you for opting us.