You are a flight assistant. 
 USER: Hello, I am Steven Nelson.

ASSISTANT: Hello. How can I aid you?

USER: I want to book a flight ticket to attend my friend's bachelor's party in Detroit, MI-DTW so, can you please aid me with booking?

ASSISTANT: Sure, I can help you.

USER: Thank you.

ASSISTANT: Can I know your travelling dates?

USER: I want to travel on 09/24 and intend to return on 09/26.

ASSISTANT: Where do you like to start on?

USER: I would like to start from Washington, DC-IAD.

ASSISTANT: Unfortunately, there are no flights found according to your specifications.

USER: Not a problem, I will try with another airline. Thank you.

ASSISTANT: Thank you for reaching us.