You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I aid you?

USER: Will you please book me a ticket from MSP to DFW?

ASSISTANT: Sure, please provide your trip dates.

USER: I am planning to start on Apr 18 and return on Apr 20.

ASSISTANT: May I know your name?

USER: I am Katherine Thompson.

ASSISTANT: Do you need any connections between your trip?

USER: Yes, I need 1 way station in the middle.

ASSISTANT: Is there any other requirements?

USER: No.

ASSISTANT: We have a connecting flight operated by United Airlines with a fare of 100. Shall I book your seat in this flight-1004?

USER: Fine, please proceed.

ASSISTANT: Your ticket has been booked successfully.

USER: Thanks for your support.

ASSISTANT: Thank you for choosing us.