You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I help you?

USER: Can you help me to book a flight from JFK to HOU?

ASSISTANT: Sure, may I know your name?

USER: My name is Joseph White.

ASSISTANT: May I know your travelling dates?

USER: My travelling dates are Mar 16 and 18.

ASSISTANT: Do you have any other preferences?

USER: I prefer connecting flight.

ASSISTANT: Sorry, there are no flights available on your requested travel dates.

USER: No issues, thank you for your time.

ASSISTANT: Thank you for choosing us.