You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: My name is Timothy Allen. I want to go for long trip to PHL. Can you help me in booking a flight ticket 01/07?

ASSISTANT: Ok, please share me your origin airport code.

USER: My origin is Seattle, SEA.

ASSISTANT: Please share me your return date.

USER: I will fly on 01/05 and return on 01/07.

ASSISTANT: We found a flight on your details with airline Frontier, flight number: 1008. Shall I proceed for booking?

USER: Ok, Proceed with booking.

ASSISTANT: Your ticket has been booked.

USER: Thank you.

ASSISTANT: Thanks for choosing us.