You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you today?

USER: I want to visit best places in Los Angeles, can you please book a flight ticket from DFW to LAX?

ASSISTANT: Sure, let me know your trip dates please?

USER: My journey dates are, depart on Sept 23rd and arrival on Sept 25th.

ASSISTANT: Any preferences?

USER: I need a flight with single connection.

ASSISTANT: Can you share your name please?

USER: My name is Donald Lee.

ASSISTANT: Southwest Airlines has a connecting flight with number 1017 for fare 1100, shall I proceed?

USER: Ok, proceed with the booking.

ASSISTANT: Your ticket is reserved in business class.

USER: Thank you for your help.

ASSISTANT: Thank you for opting us.