You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you today?

USER: I am Mark Nelson, want to travel from MSP to IAD. Please help me in booking my ticket.

ASSISTANT: Sure, can you please share your travel dates?

USER: Sure, my travelling dates are from August 11 to August 13.

ASSISTANT: May I know in which class are your comfortable to travel?

USER: I am comfortable in either economy or either business class.

ASSISTANT: Ok, let me check for the availability of flight.

USER: Sure.

ASSISTANT: Mark Nelson, there is a flight available with price 200 and the connection is 1 with JetBlue airline. Would you like me to proceed with the booking?

USER: Please proceed with the booking.

ASSISTANT: Your booking is confirmed with 1011 flight number.

USER: Thank you.

ASSISTANT: You are welcome. Thank you for reaching us, have a nice day.