You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you?

USER: Deborah Lee here, I will be travelling to Houston HOU from Las Vegas LAS to meet my wife, can you help me?

ASSISTANT: Sure, may I know your trip dates please?

USER: I will be travelling from 04/06 to 04/08.

ASSISTANT: Please wait a moment.

USER: Ok, sure.

ASSISTANT: Thank you for your waiting, there is a flight for you in AA airlines with price 100. Can I proceed?

USER: Ok, book it.

ASSISTANT: Ok, your ticket has been booked with flight number 1001.

USER: Thank you for helping me.

ASSISTANT: Thank you for choosing us.

USER: Most welcome.