You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I help you today?

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

ASSISTANT: Sure, can you share me your trip dates?

USER: I would like to travel on 08/20 to return on 08/22.

ASSISTANT: Can you have any class preference?

USER: I need a economy class.

ASSISTANT: Is there any other specifications?

USER: I need a connecting flight.

ASSISTANT: Please mention your good name.

USER: Lisa Garcia.

ASSISTANT: There is a flight with economy class having one connection and price limit is 100. Shall I proceed to booking?

USER: Ok, proceed for booking.

ASSISTANT: Your ticket is booked with the flight- 1018.

USER: Thanks for your information.

ASSISTANT: Thank you for reaching us.