You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you today?

USER: Justin Clark here. I want to book a ticket from DTW to ATL to meet my uncle, can you help me in booking?

ASSISTANT: Sure Clark, could you please share me with your dates of journey?

USER: I am departing on 07/08 and return on 07/10.

ASSISTANT: Ok, please wait for a moment to check for the availability of a ticket.

USER: Ok.

ASSISTANT: Sorry Clark, there is no flight found as per your travelling details.

USER: That's ok, thank you for your information.

ASSISTANT: Thank you for choosing us and you are welcome.