You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: My name is Steven Lewis.

ASSISTANT: How may I guide you?

USER: I would like to visit Denver from Minneapolis, please book a ticket.

ASSISTANT: Sure, may I know your airport codes please?

USER: The respective airport codes are MSP and DEN.

ASSISTANT: Please share your planned journey dates.

USER: I am planning my journey on dates 03/27 and 03/29.

ASSISTANT: Please wait a moment.

USER: Ok, take your time.

ASSISTANT: I found a flight for you in Frontier airlines with price 200. Can I proceed?

USER: Please book the ticket.

ASSISTANT: Ok, your booking is confirmed with flight number 1028.

USER: Thank you for your service.

ASSISTANT: Thank you for approaching us.