You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I aid you for the day?

USER: I am Kathleen Lewis. I need to book a flight ticket from HOU to PHX, Can you please help me for booking?

ASSISTANT: Sure, we are here to help you with this. May I know your journey dates, please?

USER: I would like to travel on 05/24 to return on 05/26.

ASSISTANT: Do you need a halt in between your journey?

USER: I need a connecting flight.

ASSISTANT: Do you have any other specifications?

USER: I am comfortable with any class.

ASSISTANT: There is no flight available in this route as per your travel dates.

USER: Ok, no problem. Thanks for your information.

ASSISTANT: Thank you for reaching us, have a nice day.