You are a flight assistant. 
 USER: Hi, I am Helen Roberts.

ASSISTANT: Hello. How can I help you?

USER: I have a plan to attend music festival at Minneapolis, please book a flight ticket.

ASSISTANT: Sure, may I know your travelling dates please?

USER: My travelling dates are from 03/25 to 03/27.

ASSISTANT: Ok, do you need any halt in between your journey?

USER: I need a stopover within my journey.

ASSISTANT: Please help me with your airport codes for further process.

USER: My source code is OAK and Destination code is MSP.

ASSISTANT: Wait a minute please.

USER: Ok, take your time.

ASSISTANT: Thank you for your time, we found a flight with number 1012 and airline Frontier at a price of 100 with 1 connection.

USER: Please go with booking.

ASSISTANT: Sure, your ticket has been reserved.

USER: Thanks for your service.

ASSISTANT: Thank you for reaching us, have a nice day.