You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I guide you at present?

USER: I am planning to book a flight ticket to IAH from DEN, can you please help me out?

ASSISTANT: Sure, I am glad to help you for booking.

USER: Thanks.

ASSISTANT: Let me know your connection limit.

USER: Sure, I am looking for a direct flight.

ASSISTANT: Can I have your good name please?

USER: Sure, my name is Kenneth Carter.

ASSISTANT: Ok, When you are planning to travel?

USER: My planned travelling dates are Dec 01 and Dec 03.

ASSISTANT: Do you prefer an economy class or a business class?

USER: Any class is ok for me.

ASSISTANT: Is there any time concern?

USER: No.

ASSISTANT: Ok, please wait for a moment.

USER: Ok, take your time.

ASSISTANT: Sorry to inform you that, there were no flights running to that location due to bad weather condition.

USER: It's ok, thank you for the information.

ASSISTANT: Thank you for approaching us.