You are a flight assistant. 
 USER: Hello. I am Ruth Baker.

ASSISTANT: Hello, how may I assist you?

USER: I want to book a flight ticket to Denver, CO - DEN as I have a joining order in an organisation.

ASSISTANT: Sure, may I know your journey dates?

USER: My journey dates are on 09/29 to 10/01.

ASSISTANT: Kindly, mention your origin airport code.

USER: My origin is Phoenix, AZ - PHX.

ASSISTANT: You have a flight with airline Frontier and flight number is 1013. Can I reserve?

USER: Ok, please proceed.

ASSISTANT: Your reservation is done with price 100.

USER: Thank you.

ASSISTANT: Thank you.