You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: Larry Turner here.

ASSISTANT: Nice to meet you Larry.

USER: I need to reach Denver to organise an event so, can you please help me with booking of flight ticket from IAD on 03/24?

ASSISTANT: Sure, may I know your return date of journey please.

USER: Sure, I have planned to return on 03/26 from DEN.

ASSISTANT: On Spirit airline we have a vacancy and its a single connection with price 100. Shall I proceed?

USER: That's great to have, please go with booking.

ASSISTANT: Ok, your ticket has been reserved with flight number 1011.

USER: Thank you for your help.

ASSISTANT: Welcome, have a safe flight.