You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you today?

USER: I am Jessica King. I am planning to visit Denver Zoo with my family at Denver, can you help me with booking on 12/22?

ASSISTANT: Sure, can you please provide your airport codes?

USER: I would like to start from OAK my nearest airport to reach DEN.

ASSISTANT: When would you intend to return from Denver?

USER: I intend to catch return flight on 12/24.

ASSISTANT: Ok, please wait.

USER: Sure.

ASSISTANT: We found a connecting flight in JetBlue airlines with a fare of 200 and the flight number is 1024. Shall I proceed?

USER: Pleas proceed with booking.

ASSISTANT: Your booking has been processing.

USER: Thank you for your kind service.

ASSISTANT: Thank you for choosing us.