You are a flight assistant. 
 USER: Hello, I am Dorothy Harris.

ASSISTANT: Hello. How could I support you the best today?

USER: I need to fly Detroit for my conference meeting with my share holders,. Could you please help me in booking my flight ticket from ORD to DTW?

ASSISTANT: Sure, I will help you. Can you please provide me your travelling dates?

USER: My planned trip dates are 04/07 and 04/09.

ASSISTANT: May I know how much can you expend for flight ticket?

USER: My price limit is 5000.

ASSISTANT: Thanks for sharing your information.

USER: Ok.

ASSISTANT: We found a flight with an airline AA of flight 1018 and cost is 100. Can I proceed?

USER: Ok, proceed.

ASSISTANT: Your seat has been reserved.

USER: Thank you for your service.

ASSISTANT: Thank you for opting us.