You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: Myself John Brown. I want to go Minneapolis, for giving a seminar to students about science and technology, can you please book a flight ticket from Denver?

ASSISTANT: Sure, please tell me your airport codes.

USER: I want to take off from DEN airport and destination airport is MSP.

ASSISTANT: Ok, may I know your travelling dates?

USER: My departure date is 12/27 and please book my return ticket also on 12/29.

ASSISTANT: The UA airline with flight number 1015 is available having price as 100 and connection as 1. Would you like me to book this plane ticket?

USER: Please book this flight ticket on my name.

ASSISTANT: Ok, please allow me a minute.

USER: Ok.

ASSISTANT: John, your plane ticket is confirmed.

USER: Thank you for your help.

ASSISTANT: Thank you for reaching us.