You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you now?

USER: I am Nancy Mitchell.

ASSISTANT: Welcome to flight booking agency Nancy.

USER: I am planning to book a ticket from LAX to DEN. Can you please help me out?

ASSISTANT: Sure, I will help you with that. Can you please provide your planned dates of travelling?

USER: I am planning to travel on 09/20 and return back on 09/22.

ASSISTANT: Please wait a moment to check the flights on your route.

USER: Sure.

ASSISTANT: Based on your travel details, I have found a flight with a single connection with a fare of 200 from Spirit airlines. If you are ok with this, please inform me to book the flight.

USER: That's fine, please proceed the booking.

ASSISTANT: Ok, your ticket has been confirmed in flight number 1003.

USER: Thank you for your service.

ASSISTANT: Thank you for reaching us, have a great journey.