You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how best I can assist you today?

USER: I am Charles Hall. Please help me in booking from MSP to DEN.

ASSISTANT: Sure, let me share your planned dates.

USER: My travelling dates are from Dec 4 to Dec 6.

ASSISTANT: Ok, please help me with your class preference.

USER: I am comfortable with any class.

ASSISTANT: Is there any airline preference?

USER: I prefer normal-cost airline.

ASSISTANT: Do you need any other specifications?

USER: I need a connecting flight.

ASSISTANT: Ok, please wait.

USER: Sure.

ASSISTANT: Thank you for waiting, we found a connecting flight with 1005 number and the fare is 100 in Delta Airline.

USER: Ok, you can proceed.

ASSISTANT: Ok, your ticket has been confirmed in economy class.

USER: Thank you.

ASSISTANT: Thank you for choosing us.