You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you today?

USER: My name is John Gonzalez. I have a meeting with my client at Philadelphia, PA - PHL. Can you assist me to book my tickets?

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

USER: I will depart from Houston, TX - HOU.

ASSISTANT: Ok, when would you like me to book a ticket?

USER: Please book my depart on 12/09 and return on 12/11.

ASSISTANT: Thanks for your details, there is a connecting flight in JetBlue airlines with a fare of 100. Shall I proceed?

USER: Please confirm it.

ASSISTANT: Sure, your booking has been done with 1019 flight number.

USER: Thank you for your help.

ASSISTANT: Thank you for choosing us.