You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I be your helping hand?

USER: I am Raymond Jones want to meet my sister at MN-MSP during this vacation. Can you book  a  ticket from CO-DEN?

ASSISTANT: Sure, we are willing to help you.

USER: Thank you.

ASSISTANT: May I know your willing dates to travel?

USER: My travelling dates are 09/15 and 09/17.

ASSISTANT: How much airfare are you expecting for this reservation?

USER: I can spend upto 5000.

ASSISTANT: Ok, please wait while I am searching a best flight for you.

USER: Ok.

ASSISTANT: Frontier airline is available on your route at a fare of 100 with a halt in flight number 1022. Shall I book it for you?

USER: You can proceed.

ASSISTANT: Your booking has been confirmed in economy class.

USER:  Thank you for booking.

ASSISTANT: Thank you for opting us.