You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I provide assistance to you?

USER: I am Kevin Harris. I want to travel to Houston, HOU. Can you book a flight ticket from Phoenix, PHX?

ASSISTANT: Sure, we are here to help you.

USER: Thank you.

ASSISTANT: Kindly mention your travel dates.

USER: My travelling dates are from 08/15 to 08/17.

ASSISTANT: How much can you afford for this journey?

USER: I can pay up to 5000.

ASSISTANT: Ok, please wait a moment.

USER: Sure.

ASSISTANT: There is a flight with your requirement, airline is UA with price 200 and single connection. Shall I proceed with booking?

USER: Please, proceed.

ASSISTANT: Your booking is done and flight number is 1027.

USER: Thank you for assisting me.

ASSISTANT: Thanks for choosing us.