You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I serve you today?

USER: I need you to book a flight ticket from JFK to PHL. Please help me.

ASSISTANT: Sure, let me know your travel dates?

USER: My planned travelling dates are December 5 and 7.

ASSISTANT: Do you have any connection limit?

USER: Yes, I would like fly in a connecting flight.

ASSISTANT: Is there any other preferences?

USER: Nothing much to state.

ASSISTANT: May I know your good name?

USER: My name is Helen Mitchell.

ASSISTANT: We found a connecting flight 1008 in Delta airline with fare 200 and class is economy. Shall I proceed with booking?

USER: Please book the flight.

ASSISTANT: Your flight ticket has been reserved.

USER: Thank you for the help.

ASSISTANT: Thank you for reaching us.