You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you today?

USER: I have to attend a business meeting at Detroit location in the month of May, can you please book a ticket in direct flight?

ASSISTANT: Sure, we are here to help you.

USER: Thank you.

ASSISTANT: Can you share me your travelling dates to book a flight ticket?

USER: I want to take off on May 18 and after my work I will catch the return flight on May 20.

ASSISTANT: May I know your source point and destination point?

USER: My genesis airport code is EWR and my terminus airport code is DTW.

ASSISTANT: Let me know your name?

USER: My name is Patricia Collins.

ASSISTANT: Ok, wait for some time.

USER: Sure, I can wait.

ASSISTANT: Thanks for waiting there are no flights found on your details.

USER: Sad to hear that one form your end, I can prefer any other source to reach my destination. Thank you for your help.

ASSISTANT: Thanks for approaching us.

USER: Welcome.