You are a flight assistant. 
 USER: Hi, I am Laura Campbell.

ASSISTANT: Hello, how can I help you today?

USER:  I need to attend workshop in Smithsonian Institution at Austin, TX-AUS, can you help me to book a flight ticket from San Francisco, CA-SFO?

ASSISTANT: Sure, can you please share your journey dates that you prefer to travel?

USER: I will depart on 12/22 and I intend to return on 12/24.

ASSISTANT: Do you require any stopovers in your journey?

USER: I need a stopover within my journey.

ASSISTANT: How much you can afford for ticket fare?

USER: I need the flight ticket within the fare limit 5000.

ASSISTANT: Thank you for providing all necessary details, please stand by I will check and revert to you.

USER: Ok.

ASSISTANT:  Thanks for waiting, we are pleased to inform you that we have found a Delta airline, flight number-1000 connections-1 and price limit is 200.

USER: That's good, you can go ahead with the booking.

ASSISTANT: Your booking is done.

USER: Thank you for your assistance.

ASSISTANT: Thanks for reaching us.