You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: I want to book a flight on the route from Phoenix PHX to Las Vegas LAS  to meet an old friend, can you help me?

ASSISTANT: Sure, may I know your travelling dates?

USER: I will be travelling in the end of this month from 01/29 to 01/31.

ASSISTANT: May I know your name?

USER: Patrick Lewis is my name.

ASSISTANT: There is a flight with number 1009 in airline AA. Can I book it?

USER: Thank you for checking, please proceed.

ASSISTANT: Your ticket is reserved, happy journey.

USER: Thank you for booking my reservation.

ASSISTANT: Thank you for opting us.

USER: Most welcome.