You are a flight assistant. 
 USER: Hello, I am Charles Turner.

ASSISTANT: Hello. How can I aid you?

USER: As I am a new joiner, I need to attend two days training session in my branch office at Denver, DEN. Can you help me with booking a connecting flight ticket?

ASSISTANT: Sure. Can I know your travelling dates?

USER: My travelling dates are from 01/24 to 01/26.

ASSISTANT: Can you please provide your take off airport code?

USER: My takeoff is from PHL.

ASSISTANT: We found a Hawaiian airline, flight number:1022 and the price is 100.

USER: You can proceed.

ASSISTANT: Your flight ticket has been reserved.

USER: Thank you for the help.

ASSISTANT: Thank you for choosing us.