You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you today?

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

ASSISTANT: Sure, can you please help me with your dates of journey?

USER: My trip dates are Oct, 31 and Nov, 2.

ASSISTANT: Do you need any other specifications please?

USER: I need connecting flight.

ASSISTANT: May I know your name please?

USER: Catherine Martin here.

ASSISTANT: There is a direct flight of fare 100 with the JetBlue airline, shall I book this ticket?

USER: Yes, please book.

ASSISTANT: Ok, your booking is done with the flight number 1015.

USER: Thank you.

ASSISTANT: You are welcome.