You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I aid you?

USER: I am looking for a direct flight, can you please help me to book my flight ticket from DFW to DTW?

ASSISTANT: Sure, I can help you.

USER: Thank you.

ASSISTANT: Can I know your travelling dates?

USER: I will depart on 01/12 and return on 01/14.

ASSISTANT: May I know your name?

USER: Sure, my name is Carolyn Rodriguez.

ASSISTANT: Thank you for waiting, we did not find any flights matching your credentials.

USER: Sad to hear that, anyway thank you for checking.

ASSISTANT: Thanks for reaching us.

USER: You are welcome.