You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you today?

USER: Myself George Johnson. I am looking for a flight from JFK to DEN. Can you help me with booking a flight ticket?

ASSISTANT: Sure, may I know your trip dates?

USER: My planned trip dates are Mar 02 and Mar 04.

ASSISTANT: Do you haven any class preference?

USER: No, I am comfortable with any class.

ASSISTANT: May I know your other preferences?

USER: I prefer to travel in Normal cost Airlines with connecting.

ASSISTANT: Do you need a connecting flight?

USER: Yes, I need a connecting flight in my journey.

ASSISTANT: Can I know your depart and return time?

USER: My depart time should be in the evening.

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

USER: Not an issue, thank you for the information.

ASSISTANT: Thank you for reaching us.