You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I help you?

USER: Could you please book a flight ticket from JFK to IAH?

ASSISTANT: May I know your journey dates?

USER: My trip dates are Jan 08 and Jan 10.

ASSISTANT: Is there any preference?

USER: I prefer a business class.

ASSISTANT: Is there any connection preference?

USER: I need a connecting flight.

ASSISTANT: Please provide your name?

USER: I am Michael Wilson.

ASSISTANT: Sorry, there is no flight with your requirement.

USER: No problem, thank you.

ASSISTANT: Thank you.