You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I assist you at this moment?

USER: I want to meet my boss at Atlanta, please book my flight ticket from DTW to ATL.

ASSISTANT: Sure, I will help you with this. Can you please provide your journey dates?

USER: Yes, I would like to depart on Dec 26th and also please book my return ticket on Dec 28th.

ASSISTANT: Do you have any connection limit?

USER: Yes, I need single connection.

ASSISTANT: May I know your good name please?

USER: My name is Amy Edwards.

ASSISTANT: Do you have any class preference?

USER: I prefer for an economy class.

ASSISTANT: Do you have any other specifications?

USER: I also prefer for a normal-cost airlines.

ASSISTANT: Delta Airlines is providing connecting flight on this route with a ticket fare of 100 and flight departs at 4:00AM and arrives at 16:00PM, shall I book your ticket in this flight?

USER: Yes, please book the ticket for me.

ASSISTANT: Amy Edwards, your ticket is booked in flight number 1023.

USER: Thank you so much for your help.

ASSISTANT: You are welcome.