You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I render you at this moment?

USER: Can you please help me in reserving a flight from CLT to reach HOU?

ASSISTANT: Sure, on which dates would you like to travel?

USER: Thank you, my travelling dates are Aug 13th and Aug 15th.

ASSISTANT: Please let me know if you need a connection in between your journey.

USER: I prefer a flight with single connection.

ASSISTANT: Do you have any other specifications?

USER: I want to return in the afternoon time.

ASSISTANT: Can I know your name, please?

USER: I am Patrick Turner.

ASSISTANT: Please give me a minute to check the availability of flights.

USER: Ok, sure.

ASSISTANT: Sorry, there were no flights found to return in the afternoon.

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

ASSISTANT: Thank you for contacting us.