You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I support you today?

USER: My name is Daniel Martinez, I am looking for a direct flight from DTW to visit trade fair. Can you help me with booking?

ASSISTANT: Sure, I am glad to help you. May I know your journey dates please?

USER: I will travel on July 29 and return on July 31.

ASSISTANT: Can you please share your landing airport code?

USER: My landing point is DCA.

ASSISTANT: Is there any class preference?

USER: No.

ASSISTANT: Do you have any other specifications?

USER: I want my depart flight in morning and return flight in afternoon.

ASSISTANT: Ok, please standby.

USER: Sure.

ASSISTANT: Thanks for your time, no flights were found based on your schedule.

USER: Ok, thank you for the information.

ASSISTANT: Thank you for choosing us.