You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I assist you?

USER: I need to book a flight ticket from DEN to MSP, Can you please help me for booking?

ASSISTANT: Sure, may I know your planned travel dates please?

USER: I would like to travel on 08/10 to return on 08/12.

ASSISTANT: Do you have any class preference?

USER: I am comfortable with any class.

ASSISTANT: Would you like to travel in a connecting flight or a direct flight?

USER: I need a connecting flight.

ASSISTANT: Do you have any particular time for departing and returning?

USER: I am comfortable with any timings.

ASSISTANT: May I know your good name please?

USER: Kevin Parker here.

ASSISTANT: We found American airline with economy class and flight number is 1003 with arrival time is 16.00 hours and departure time is 18.00 hours.Shall I proceed for booking?

USER: Ok, proceed for booking.

ASSISTANT: Your ticket is booked.

USER: Thanks for your information.

ASSISTANT: You are welcome.