You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I aid you today?

USER: I would like to prefer a normal-cost airline for my business trip to Oakland. So can you book the flight ticket for me?

ASSISTANT: Sure, please share me your trip dates.

USER: The trip dates are from 05 Nov to 07 Nov.

ASSISTANT: May I know your airport codes?

USER: The airport codes are from MSP to OAK.

ASSISTANT: For booking, we need your good name. Please mention it.

USER: I am Carol Martin.

ASSISTANT: Do you need direct flight or connecting flight?

USER: I prefer a stopover flight.

ASSISTANT: Is there any time concern for you?

USER: No.

ASSISTANT: We found a UA airline and 1020 is flight number with a fare of 100. Shall I proceed?

USER: You can book it.

ASSISTANT: Your ticket is confirmed with an economy class.

USER: Thank you.

ASSISTANT: Thank you for opting us.