You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: I am Jessica Miller, want to travel from DTW to DEN. Please help me in booking my ticket.

ASSISTANT: Sure, may I know your travelling dates?

USER: Sure, my travelling dates are from 06/03 to 06/05.

ASSISTANT: Do you need any halt in between journey?

USER: Yes, I need a single halt.

ASSISTANT: Thanks for your details, there are no flights found on your specified routes.

USER: It's ok, thank you.

ASSISTANT: Thank you for approaching us.