You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I aid you?

USER: My name is Justin Thomas. I want to book a flight ticket with a price limit of 5000 for visiting a Walker Art Center in Minneapolis & St. Paul.

ASSISTANT: Sure, could you please mention your airport codes?

USER: My source and destination airport codes are DC-IAD, MN-MSP.

ASSISTANT: Do you have any connection limit?

USER: Connections limit is one.

ASSISTANT: May I know your dates of journey?

USER: My departure day is 01/11, return day is 01/13.

ASSISTANT: Ok, please wait for a minute. I will check and revert you.

USER: Ok.

ASSISTANT: Thank you for waiting. We found a UA airline, flight number 1012 and price is 200 matching with your requirements. Shall I proceed with this airline?

USER: May I know the connections limit?

ASSISTANT: Sure, it has one connection.

USER: You can proceed to booking.

ASSISTANT: Ok, your reservation has been processed.

USER: Thanks for your service.

ASSISTANT: Thank you for contacting us and have a nice day.