You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I help you?

USER: Can you please help me with booking from HOU to DEN?

ASSISTANT: Sure, I am here to help you for this. When would you like to travel?

USER: My travelling dates are Sept 14 and Sept 16.

ASSISTANT: Is there any connection limit?

USER: I need a direct flight.

ASSISTANT: Do you have any other specifications regarding your journey?

USER: No.

ASSISTANT: May I know your name please?

USER: My name is Dennis Turner.

ASSISTANT: Sorry to inform you, no flights are found with your requirements.

USER: That's ok, thank you for the response.

ASSISTANT: You are most welcome.