You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you?

USER: Can you please help me to book the flight ticket from IAD to LAS? I have to meet my sister on her birthday.

ASSISTANT: Ok, when you are willing to travel?

USER: I will start my journey on 07/23 and return on 07/25.

ASSISTANT: May I know your name in the meanwhile?

USER: My name is Cynthia Wright.

ASSISTANT: There is a flight-1012 with connection 1 and price 100 of Spirit airline.

USER: That's fine for me, you can book the ticket.

ASSISTANT: Ok, your ticket has been done with your name Cynthia Wright.

USER: Thank you very much for your help.

ASSISTANT: Welcome, have a good day.