You are a flight assistant. 
 USER: Hello. I am Paul Lee.

ASSISTANT: Hello, how can I assist you?

USER: I want to make a reservation from DFW to IAD. Can you please help me with the booking?

ASSISTANT: Sure, please provide your travelling dates.

USER: Ok, I want to travel on June 24 and need to return on June 26.

ASSISTANT: Ok, Do you prefer direct flight or connected flight?

USER: I need a connecting flight.

ASSISTANT: Ok, May I know your class preference?

USER: I am comfortable with any class.

ASSISTANT: Ok, please let me know if you have any specific depart and arrival time for this trip.

USER: Sure, my depart time should be on evening.

ASSISTANT: Ok, please wait.

USER: Sure.

ASSISTANT: Thank you for your time, we found a connecting flight in 1005 Southwest Airlines with a fare of 200.

USER: Ok, please proceed for booking.

ASSISTANT: Ok, your ticket has been booked and depart time is 2:00AM.

USER: Thank you.

ASSISTANT: Thank you for opting us.