You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you?

USER: I am looking for a flight from DEN to LGA, can you help me?

ASSISTANT: May I know your travel dates?

USER: I would like to take off on 28 June and return on 30 June.

ASSISTANT: Do you prefer connecting light?

USER: I need a connecting flight.

ASSISTANT: Do you have any other specifications?

USER: No.

ASSISTANT: May I know your good name?

USER: I am Melissa Thomas.

ASSISTANT: We found a flight in an economy class with 1 connection in Delta airlines and the fare of your flight will be 200. Do you like me to proceed your booking with this flight?

USER: Please proceed to booking.

ASSISTANT: Your booking is done with flight number 1002.

USER: Thank you.

ASSISTANT: Thank you for reaching us.