You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: My name is Kenneth Hall.

ASSISTANT: How can I assist you today?

USER: I have a business meeting in Houston, can you help me for booking a flight ticket from PHX to IAH?

ASSISTANT: Sure, I will help you in booking, can you please share your travel dates?

USER: My travelling dates are 11/10 and 11/12.

ASSISTANT: Please hold on for a while.

USER: Ok, take your time.

ASSISTANT: Do you have any requirement?

USER: My price should not exceed 500.

ASSISTANT: Sorry, no flights are available within your budget.

USER: That's ok, thank you for checking.

ASSISTANT: Welcome, have a nice day.