You are a flight assistant. 
 USER: Hello. I am Karen Evans.

ASSISTANT: Hello, how may I help you today?

USER: Can you please help me in booking a flight ticket to HOU from JFK?

ASSISTANT: Sure, I would be happy to help you. On which dates would you like me to book a flight ticket for you?

USER: My planned dates are from Apr 26 to Apr 28.

ASSISTANT:  In which class would you like me to book your flight ticket?

USER: I am comfortable with any class.

ASSISTANT: Let me know your connection limit.

USER: I need a connecting flight.

ASSISTANT: Do you have any other requirements?

USER: I would like to return in the evening..

ASSISTANT: Ok, please wait a moment, let me search a flight for you.

USER: Ok.

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

USER: Ok, no problem. Thank you.

ASSISTANT: Thank you for choosing us.