You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I aid you?

USER: Can you help me booking a flight ticket from HOU to PHX?

ASSISTANT: Sure, I am here to help you. Can you please share travel dates?

USER: I will start on 07/23 and return on 07/25.

ASSISTANT: May I know your connection limit?

USER: I am looking for a direct flight.

ASSISTANT: Do you have airline preference?

USER: No.

ASSISTANT: Do you have any other requirements?

USER: I am comfortable with any flight.

ASSISTANT: Ok, please share your name to proceed further.

USER: I am Ryan Williams.

ASSISTANT: Sorry, there are no flights in this route as per your travelling details.

USER: No problem, thank you for the information.

ASSISTANT: Thank you for choosing us.