You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you?

USER: I want to visit beautiful place Liberty Bell in PHL from LAX. So, I want to book a ticket.

ASSISTANT: Can you provide me dates of travelling?

USER: I may start my journey from 01/29 to 01/31.

ASSISTANT: Please, wait for a while.

USER: Sure.

ASSISTANT: Let me check your availability. We found a flight on your requirement.

USER: Proceed with my booking.

ASSISTANT: Flight number is 1006 and airline of Delta. Ok, for booking ticket, may I know your name?

USER: Sure. My name is Kevin Williams.

ASSISTANT: Yes, Kevin your ticket has been booked.

USER: Thanks for booking my ticket.

ASSISTANT: Thank you for choosing our airline.

USER: Thanks for helping me out.

ASSISTANT: Welcome.