You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you?

USER: Can you please help me in reserving the ticket from HOU to IAH?

ASSISTANT: Sure, can you please let me know your trip dates?

USER: I would like to travel on Aug 25 and again I will return back on Aug 27.

ASSISTANT: Would you like to fly with connecting flight or direct flight?

USER: I want to travel in single connection flight.

ASSISTANT: Do you have specific time concern for return and depart?

USER: I want to depart in the evening.

ASSISTANT:  If you can help me with your name, I can check with the availability of flights.

USER: Myself Christopher Anderson.

ASSISTANT: Thanks for sharing your details, we are unable to provide flight in between your journey routes.

USER: Not a big deal, anyhow thank you very much for your information.

ASSISTANT: Thank you for reaching us.