You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you?

USER: My name is Gregory Campbell. I want to travel from Washington-IAD to meet my family in Denver-DEN.

ASSISTANT: Sure, may I know your travel dates?

USER: Departure date is on 11/23 and return on 11/25.

ASSISTANT: Flight number 1018 of Spirit airlines is matching with your requirement.

USER: Please proceed for booking.

ASSISTANT: Your ticket is confirmed.

USER: Thanks for helping me out.

ASSISTANT: Most welcome.