You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Dorothy Davis.

ASSISTANT: How can I assist you today?

USER: Can you please book a flight ticket from DTW to PHL?

ASSISTANT: sure, will you mention your travelling dates please?

USER: My journey dates are from Sept 28 to Sept 30.

ASSISTANT: Do you have any specifications?

USER: I need a connecting flight.

ASSISTANT: Please give me a moment.

USER: Sure.

ASSISTANT: Thanks for waiting, there is no flights found under your preferable details.

USER: Ok, No issues. Thank you.

ASSISTANT: Welcome, have a great day.