You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I address you?

USER: Please book me a flight ticket from JFk to IAH to meet my family.

ASSISTANT: Sure, please provide your trip dates.

USER: I have planned to travel on Oct 15th and return on Oct 17th.

ASSISTANT: We need your name to process further.

USER: David Lee.

ASSISTANT: Do you need economy class or business class?

USER: I am ok with both.

ASSISTANT: Do you need any connections between your trip?

USER: Yes, I prefer connecting flight.

ASSISTANT: Do you need any other requirements?

USER: No, thank's.

ASSISTANT: Delta Airlines is providing connecting flight with the ticket fare of 200, Shall I proceed?

USER: Ok, please book this ticket.

ASSISTANT: Your ticket has been booked with Delta airlines, Flight number:1029.

USER: Thank you.

ASSISTANT: Thank you for choosing us.