You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: My name is Mark Wilson. I am planning to travel from DTW to CLT for a business trip. Can you please help me with booking a flight ticket?

ASSISTANT: Sure, I am here to help you. Can you please share your travelling dates?

USER: Sure, my departure date is 08/30 and the return date is on 09/01.

ASSISTANT: Thank you, please wait.

USER: Please make sure that the price limit should not exceed 200 and the connection limit should be 1.

ASSISTANT: Sorry, there is no flight with your price limit.

USER: That's really sad. Anyways, thank you for your help.

ASSISTANT: Thank you, have a nice day.

USER: Thank you.