You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

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

ASSISTANT: May I know your trip dates to go?

USER: My trip dates are May 13 and May 15.

ASSISTANT: Let me know your connection limit.

USER: I prefer connecting flight for this trip.

ASSISTANT: Is there any other concern?

USER: I would like to depart in the morning time.

ASSISTANT: May I know your name?

USER: I am Raymond King.

ASSISTANT: There is a connecting flight-1023 in economy class, shall I proceed?

USER: Please proceed.

ASSISTANT: Ok, booking is done on Delta airlines.

USER: Thank you.

ASSISTANT: Welcome Raymond King.