You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you today?

USER: Can you please help me in reserving my flight from SFO to reach HOU, as I have a meeting there?

ASSISTANT: Sure, I am here to help you. Can you please provide your journey dates?

USER: Thank you, my travelling dates are Mar 22nd and Mar 24th.

ASSISTANT: Do you have any connection limit preference?

USER: I prefer a single connecting flight.

ASSISTANT: Do you have any other specifications for this trip?

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

ASSISTANT: May I know your name to proceed further?

USER: I am Scott Thomas.

ASSISTANT: Scott Thomas, there are no flight services available on this route with your preferences.

USER: Ok, not an issue. Anyways, thank you for the information.

ASSISTANT: Thank you for contacting us.