You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I help you today?

USER: Can you please help me with booking a flight ticket from IAD to HOU?

ASSISTANT: Sure, On which dates would you like me to book a flight ticket for you?

USER: My travel dates are Nov 19 and 21.

ASSISTANT: On what name, do I need to reserve your ticket?

USER: My name is Paul Collins.

ASSISTANT: Let me know your connection limit?

USER: I need a connecting flight.

ASSISTANT: Do you have any other requirements?

USER: I prefer to travel in business class.

ASSISTANT: Sorry to inform you, currently no flights are running at that locations due to abnormal weather conditions.

USER: Ok, no issues. Thank you.

ASSISTANT: Thank you for choosing us.