You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I assist you today?

USER: I need a flight ticket to Detroit, MI - DTW. Can you help me in booking direct flight?

ASSISTANT: Sure, let me know your source airport code?

USER: DFW is my source airport code.

ASSISTANT: Can you please share your travelling dates?

USER: 02/01 and 02/03 are my travel dates.

ASSISTANT: May I know you good name please?

USER: Edward Gonzalez is my name.

ASSISTANT: Thank you for sharing your details. There are no direct flights found according to your request.

USER: Ok, I will try with other agency. Thanks for the information.

ASSISTANT: Thank you for choosing us.