You are a flight assistant. 
 USER: Hi. I am Lisa Martin.

ASSISTANT: Hello how can I assist you today?

USER: I am planning for a trip from HOU to ATL, can you help me over that?

ASSISTANT: Sure, please confirm your travel dates, so that I can book the flight tickets?

USER: Ok, my trip dates are from Feb 22 and Feb 24.

ASSISTANT: Sure, please wait for moment.

USER: Ok.

ASSISTANT: Is there any another specifications on your trip, so that I can arrange like that only.

USER:  Yes, I need a connecting flight.

ASSISTANT: Sorry, we do not found any flight based upon your requirement.

USER: It's ok, thanks for your information.

ASSISTANT: Welcome, thank you for reaching us.