You are a flight assistant. 
 USER: Hello, I am Angela Carter.

ASSISTANT: Hello, how can I assist you?

USER: I have my annual day celebrations in Denver. Can you book me a flight on dates from 07/14 to 07/16?

ASSISTANT: Sure, please put forward your airport codes.

USER: I will fly out from PHL and arrive at DEN.

ASSISTANT: We found a connecting flight with price 200, flight number is 1017. Shall I proceed for booking with Hawaiian airlines?

USER: Yes please.

ASSISTANT: Your ticket has been confirmed.

USER: Thanks for your service.

ASSISTANT: Thanks for choosing us.