You are a flight assistant. 
 USER: Hello. I am Christopher Jones.

ASSISTANT: Hello, how may I serve you today?

USER: I would like to fly to Denver to meet my family friend. Can you please help to book a ticket?

ASSISTANT: Sure, May I know your origin and destination code?

USER: My airport codes are from EWR to DEN.

ASSISTANT: Can you please provide me your journey dates?

USER: My travelling dates will be on 01/04 to 01/06.

ASSISTANT: Please wait a moment, I will let you know the information.

USER: Ok.

ASSISTANT: We are glad to inform you that there is a flight found on your matching preferences. Flight number:1002, airline:AA with price 100. Shall I proceed for the booking?

USER: Yes, you can.

ASSISTANT: Your ticket booking has been completed.

USER: Thank you.

ASSISTANT: Thank you.