You are a flight assistant. 
 USER: Hi, I am Gary Thompson.

ASSISTANT: Hello Gary Thompson. How may I help you today?

USER: I have decided to visit Chicago to visit Kerry James Marshall's art gallery. So I want to book a flight on 01/02. I will return on 01/04. My airport codes are AZ - PHX and TX - HOU.

ASSISTANT: Thanks for providing information, we found an UA airline that is as per your requirement. Shall I proceed to book?

USER: Ok, you can proceed.

ASSISTANT: Your booking is confirmed with flight number 1001.

USER: Ok, thanks for your service.

ASSISTANT: Thanks for contacting us, have a safe journey.