You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: Laura Hall is my name.

ASSISTANT: How can I assist you today?

USER: Please help me out in booking the ticket from DFW to ATL.

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

USER: My trip dates will be Apr 20 to Apr 22.

ASSISTANT: Do you have any preferences about class?

USER: No.

ASSISTANT: Do you have any preferences about flight connections?

USER: I want a connecting flight.

ASSISTANT: Please mention your name.

USER: Above mentioned.

ASSISTANT: Please give me a moment.

USER: Ok.

ASSISTANT: There are no flights found under your preferable details.

USER: That's ok, thank you.

ASSISTANT: Welcome, have a great day.