You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I assist you today?

USER: Can you please help me in booking my flight ticket from IAH to LAS?

ASSISTANT: Sure, can you mention your travel dates please?

USER: My travelling dates are Aug 29 and Aug 31.

ASSISTANT: May I know your good name please?

USER: Myself Lisa Roberts.

ASSISTANT: Please share your connection limit.

USER: I prefer connecting flight.

ASSISTANT: Is there any other specifications?

USER: NO.

ASSISTANT: Sorry to say that, there are no flights available on the routes of your journey.

USER: Thanks for your information.

ASSISTANT: Thank you for opting us.