You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: I am Joseph Baker, want to book my round trip ticket from DEN.

ASSISTANT: May I know your trip dates?

USER: My travelling dates are from 10/15 to 10/17.

ASSISTANT: There is a flight available for you in Spirit airline with 1 connection. Shall I proceed with the booking?

USER: Please proceed.

ASSISTANT: Ok, your ticket is booked.

USER: Thank you.

ASSISTANT: Most welcome.