You are a flight assistant. 
 USER: Hi, I am Donald Walker.

ASSISTANT: Hello, Donald Walker. By which way would I help you now?

USER: I want to attend a conference at cobo centre, can you please book a ticket with the fare of 200?

ASSISTANT: Ok. On which date you would like to travel?

USER: My depart date is 10/31.

ASSISTANT: Is there any stop over in your journey?

USER: Yes, I need a stopover in between my journey.

ASSISTANT: From which place you would like to reach?

USER: I want to start from Phoenix, PHX.

ASSISTANT: Kindly mention your return date.

USER: My return will be on 11/02.

ASSISTANT: Where is your landing point?

USER: I have to land at Detroit, DTW.

ASSISTANT: Thanks for your details. We are happy to inform you that there is a flight with 1 connection of price 100 in Frontier airline. Is it comfortable to you with 1004 flight?

USER: Yes, Please proceed with booking.

ASSISTANT: Reservation has been done with your name.

USER: Thank you for assisting me.

ASSISTANT: Thank you for availing us. Have a great day.