You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Mark Campbell.

ASSISTANT: How can I assist you?

USER: I want to go from DTW to DCA.

ASSISTANT: Sure, may I know your travel dates?

USER: My travelling dates are 11/11 to 11/13. Make sure my connection should be 1 and price limit is 200.

ASSISTANT: I have found a flight in UA airline, with 1 connection limit and the price is 100. Shall I proceed booking?

USER: Yes, you can proceed.

ASSISTANT: Sure. Your ticket is booked successfully.

USER: Thank you for helping me.

ASSISTANT: You are welcome.