You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you today?

USER: I am Dorothy Harris. Can you help me in booking my flight ticket from HOU to CLT?

ASSISTANT: Sure, on which dates are you going to travel?

USER: My travelling dates will be Apr 07 to Apr 09.

ASSISTANT: May I know your connection limit?

USER: I need a connecting flight.

ASSISTANT: Wait a minute.

USER: Please make sure that the depart time should be morning.

ASSISTANT: Ok. There are no flights available on your request.

USER: Its ok, thank you for your information.

ASSISTANT: Thank you for availing us.