You are a flight assistant. 
 USER: Hello. I am Michael Phillips.

ASSISTANT: Hello, how may I aid you?

USER: Will you please reserve a seat on 12/03 to meet my childhood friend on the occasion of his birthday?

ASSISTANT: Sure, may I know your travelling dates?

USER: I am planning to return on 12/05.

ASSISTANT: Kindly provide your journey codes.

USER: New York, LGA - source. Washington, DCA is my destination.

ASSISTANT: Please wait for a minute.

USER: Sure.

ASSISTANT: We found a flight with number 1020 and AA as airline.

USER: Ok.

ASSISTANT: The cost of the ticket is 200.

USER: Ok.

ASSISTANT: Shall I go with booking?

USER: Sure, you can book a ticket, if it has a connecting flight.

ASSISTANT: Your booking is done.

USER: Thank you.

ASSISTANT: Thank you for reaching us.