You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, what can I do for you today?

USER: I planned to attend for a seminar in PHX, can you please help me to book a flight ticket from DFW?

ASSISTANT: Sure, may I know your travel dates?

USER: I prefer to travel on Feb 1 and Feb 3.

ASSISTANT: Is there any connection limit?

USER: I prefer to travel in a connecting flight.

ASSISTANT: Any other requirement to be met?

USER: No.

ASSISTANT: Can you share your name to proceed futher?

USER: I am Michael Nelson.

ASSISTANT: Delta Airlines has a connecting flight with number 1025 for fare 600, shall I proceed?

USER: Ok, please confirm my booking.

ASSISTANT: Your ticket is reserved in business class.

USER: Thank you for your help.

ASSISTANT: Thank you for opting us.