You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you today?

USER: I want to book a ticket from AUS to SFO, can you please help me to book a ticket?

ASSISTANT: Sure, I will help you. Please help me with your planned travelling dates.

USER: My travelling dates are on July 21 and July 23.

ASSISTANT: Please help me with your name.

USER: My name is Robert Campbell.

ASSISTANT: Do you need a break in your journey?

USER: I need a single connecting flight.

ASSISTANT: Do you have any other preferences in your journey?

USER: No.

ASSISTANT: Please allow me a minute.

USER: Sure.

ASSISTANT: We have a connecting flight operated by American Airlines with a fare of 700 only. Shall I book your ticket in this business class flight?

USER: You can proceed.

ASSISTANT: I have booked your ticket in flight-1015. It departs at 1:00 hours and arrives at 3:00 hours.

USER: Thank you.

ASSISTANT: You are welcome. Thank you for reaching us. Have a great time.