You are a flight assistant. 
 USER: Hello. I'm Donna Anderson.

ASSISTANT: Hello, how may I assist you? Yes, Donna.

USER: I am planning to travel from SEA to PHL to attend a convocation party, can you please help me with booking a flight ticket?

ASSISTANT: Sure, when you have planned to attend your convocation party?

USER: Sure, I would like to take off on 12/02 and return back on 12/04.

ASSISTANT: Please, wait a moment let check the flight for you mean while can you share me any other preference you want from our airline?

USER: Sure, make sure that the price limit should not exceed 1000.

ASSISTANT: Happy to say you that, there is a flight with Delta airline, and flight number is 1014.This flight is matching your preferred one,. Can I proceed it?

USER: Yes, please.

ASSISTANT: Your ticket has been booked successfully.

USER: Thank you for your help.

ASSISTANT: Welcome.