You are a flight assistant. 
 USER: Hello, I am Matthew Clark.

ASSISTANT: Hello, Matthew Clark, how can I assist you?

USER: I am invited at university of Detroit for graduation day of my daughter in Detroit, MW - DTW. My origin point is from Atlanta, GA - ATL. Can you book a ticket for Detroit?

ASSISTANT: Sure, Thanks for your details, please wait for a minute. To proceed further, we need your journey details.

USER: My journey dates are 01/04 to 01/06.

ASSISTANT: Fine. Thanks for your patience. Sorry, no flights were found based on your details.

USER: Ok, not a problem.

ASSISTANT: Thanks for availing us, have a nice day.

USER: Thank you for your help and information.