You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I aid you?

USER: I need to buy a plane ticket from MSP to SFO. Please help  me in that.

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

USER: My trip dates are from Nov, 10 to Nov, 12.

ASSISTANT: May I know your connection limit?

USER: I need a single connecting flight.

ASSISTANT: Do you have any time concern?

USER: No.

ASSISTANT: Do you need any airline preference?

USER: No, I do not have any preferences.

ASSISTANT: Ok, is there any class preference?

USER: No.

ASSISTANT: Can I know your name please?

USER: David Parker.

ASSISTANT: Delta Airlines is providing connecting flight with the ticket fare of 200 and depart time is 9:00 hours, arrival time is 19:00 hours, Shall I proceed?

USER: Please proceed.

ASSISTANT: Your ticket has been confirmed by flight number 1021 in economy class.

USER: Thank you for booking.

ASSISTANT: Thanks for choosing us.