You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I aid you?

USER: My name is Christopher Miller. I want to travel from JFK to HOU. Could you help me in booking the ticket?

ASSISTANT: Sure, I can help you in booking your ticket. Can you please provide your travelling dates?

USER: It's from 04/07 to 04/09.

ASSISTANT: I found a flight 1015 of UA airlines matches with your preferences, can I book the ticket?

USER: Please book the ticket.

ASSISTANT: Your ticket has been booked.

USER: Thank you for helping me out.

ASSISTANT: Thank you, have a good day.