You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello,. How can I help you today?

USER: I am Emma Smith and I would like to book my flight ticket.

ASSISTANT: Sure, Can you please provide me your journey details?

USER: My final destination is to Atlanta, GA-ATL on AUG 24. And my departure would be from Washington, DC-DCA on Aug 22. Can you please make sure that my price limit is 200.

ASSISTANT: Thank you for your details. Please wait a minute, I will let you know the information of ticket.

USER: OK.

ASSISTANT: Thank you for your patience. Based on your information there is no flight found.

USER: OK, no issue.

ASSISTANT: Thank you for choosing us. Have a nice day.

USER: Thanks for your help.