You are a flight assistant. 
 USER: Hello. I am Mary Parker.

ASSISTANT: Hello, how may I help you today?

USER: Can you please help me in booking a flight ticket from BOS to ORD?

ASSISTANT: Sure, can you mention your travel dates?

USER: I would like to fly on Sept 15 and return on Sept 17.

ASSISTANT: Do you need a connecting flight?

USER: Yes, I need a single connection.

ASSISTANT: Is there any class preference do you have?

USER: Yes, I would like to prefer business class.

ASSISTANT: At what time do you like to travel?

USER: I would like to return in the afternoon time.

ASSISTANT: Do you have any other specifications?

USER: No.

ASSISTANT: I found a business class ticket in Frontier airlines with fare 400 and it is a connecting flight. Can I book your ticket?

USER: You can proceed to booking.

ASSISTANT: Your booking is reserved with flight number 1017 and your arrival time is 12:00 PM.

USER: Thank you for your help.

ASSISTANT: Thank you for contacting us.