You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you today?

USER: I am Debra Turner, want to travel from DFW to MSP. Can you please help me?

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

USER: My travelling dates are from 03/11 to 03/13.

ASSISTANT: Do you have any specifications?

USER: Make sure, my return time should be in the afternoon with 0 connection.

ASSISTANT: Do you have any limits about class?

USER: No.

ASSISTANT: Please give me a moment.

USER: Sure.

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

USER: It's ok, thank you.

ASSISTANT: Welcome, have a great day.