You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, How can I best serve you today?

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

ASSISTANT: Sure, can you please mention your depart and arrival dates of your journey?

USER: My travel dates are 17 to 19 of Apr.

ASSISTANT: Do you like to go with a connecting or direct flight?

USER: I need a connecting flight.

ASSISTANT: May I know if you prefer to have any other comforts in your journey?

USER: No.

ASSISTANT: Can I know your good name to proceed further?

USER: I am Sandra Nelson.

ASSISTANT: Delta Airlines is providing connecting flight with the ticket fare of 200 and depart time is 2:00 hours, arrival time is 18:00 hours. Shall I proceed?

USER: Please proceed to booking.

ASSISTANT: Ok, your ticket is reserved in an economy class and the flight number is 1007.

USER: Thank you for your help.

ASSISTANT: Thank you for choosing us.