You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: I am looking for a flight from IAH to IAD, can you help me in booking?

ASSISTANT: Sure, when are you planning to make your trip?

USER: Sure, my planned travel dates are Jan 09 and Jan 11.

ASSISTANT: Do you need a connecting flight or direct flight?

USER: Please look for a connecting flight.

ASSISTANT: Any other requirements to be met?

USER: No, thank you for asking.

ASSISTANT: Please forward your name.

USER: Myself John Taylor.

ASSISTANT: Ok, please wait for a while.

USER: Sure, I will wait for your response.

ASSISTANT: Thanks for waiting, currently there are no flights going on your way due to heavy snow fall at your destination.

USER: That's ok, no problem. Thank you for the information.

ASSISTANT: Thank you for choosing us.