You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I aid you?

USER: I am Kevin Brown. Can you help me to book a flight from PHL on 05/06?

ASSISTANT: Sure, could you please provide your destination code to search for the flight?

USER: I am planning to return from DCA on 05/08.

ASSISTANT: Ok, please wait a moment.

USER: Ok.

ASSISTANT: Ok, there is a flight 1002 in AA airline matching your details with price 100. Shall I proceed?

USER: Book that flight.

ASSISTANT: Ok, your booking is done.

USER: Thank you.

ASSISTANT: You are welcome.