You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: Frank Adams here. I want to attend my convocation ceremony, so please book my ticket from BOS to JFK.

ASSISTANT: May I know your desired travel dates please?

USER: My itinerary dates are Dec 15 and Dec 17.

ASSISTANT: Do you have any other requirements?

USER: Please book my return ticket in the evening.

ASSISTANT: May I know your connection limit please?

USER: I need a connecting flight.

ASSISTANT: There is a flight with connection limit 1 and fare 400, shall I proceed for booking?

USER: Please proceed.

ASSISTANT: Your ticket is booked, flight number 1025.

USER: Thank you.

ASSISTANT: Thank you for opting us.