You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you today?

USER: Please reserve me a flight ticket from PHX to HOU.

ASSISTANT: Sure, could you please provide me with your dates of journey?

USER: My travel dates are Jan 06 and Jan 08.

ASSISTANT: May I know your good name please?

USER: I am John Hall.

ASSISTANT: Do you have any other requirements please?

USER: I would like to return back in the evening time in connecting flight.

ASSISTANT: Sorry John, there is no flight found as per your travelling details.

USER: No problem, thank you for the information.

ASSISTANT: You are welcome.