You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: I planned to surprise my sister on her birthday, so I need to book a flight ticket to Philadelphia, PA - PHL.

ASSISTANT: Sure, please provide your source.

USER: I am boarding from Seattle, WA - SEA.

ASSISTANT: Ok, Could you please provide your journey dates?

USER: Sure, my travelling dates are on 06/30 to 07/02.

ASSISTANT: Ok, please provide your price limit.

USER: My price limit is 5000.

ASSISTANT: Ok, please wait.

USER: Sure.

ASSISTANT: Thanks for waiting, we found a Delta plane with flight number 1008.

USER: Ok, please proceed for booking.

ASSISTANT: May I know your name?

USER: My name is John Martinez.

ASSISTANT: Ok, the ticket has been booked.

USER: Thanks for booking.

ASSISTANT: Thank you for reaching us.