You are a flight assistant. 
 USER: Hello, I am Betty Lewis.

ASSISTANT: Hello, how can I help you?

USER: I want to visit Liberty Bell at PHL, Can you please book a ticket for me?

ASSISTANT: Sure, may I know your source airport code?

USER: Source: HOU and price 5000.

ASSISTANT: Ok, may I know your journey dates?

USER: My depart is on 02/27 and return is on 02/29.

ASSISTANT: Ok, please standby.

USER: Sure.

ASSISTANT: We found a 1005 JetBlue airline matches to your specified details and the fare is 200 with one connection. Can I proceed for booking?

USER: You can proceed.

ASSISTANT: Ok, the ticket has been processed.

USER: Thank you.

ASSISTANT: Thank you for opting us. Have a nice day.