You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can we help you? It's my pleasure to help you.

USER: Can you please help me in reserving my flight from IAD to visit DFW?

ASSISTANT: Sure, can you please let me know your trip dates?

USER: Thank you, my travelling dates are Jan 25th and Jan 27th.

ASSISTANT: Would you like to fly with business class flight ir economy class flight?

USER: I am comfortable with any provided class.

ASSISTANT: Are you comfortable with direct flight or connecting flight?

USER: I prefer a single connecting flight for my journey.

ASSISTANT: Do you have any specific time preference for your return and depart?

USER: No.

ASSISTANT: May I know your airline preference?

USER: I am comfortable with any standard airlines.

ASSISTANT: Thank you for sharing all the required details, please help me with your name. So, I can check further.

USER: Barbara Moore is my name.

ASSISTANT: It may take sometime, can you please bear with me for 2-3 minutes?

USER: Ok, sure.

ASSISTANT: Thank you for waiting, Barbara Moore. Your patience is appreciated.

USER: Ok, thank you.

ASSISTANT: I found a flight which match your needs, Spirit Airlines is having a single stopover flight with 1022 flight number and the airfare is 100. Are you comfortable with this flight?

USER: Ok, please proceed by booking.

ASSISTANT: For a economy class your ticket is booked and the depart time is 2:00 hours and the arrival time is 18:00 hours.

USER: Thank you for the service.

ASSISTANT: Thank you for reaching our chat service! Hope we see you again.