You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you today?

USER: Please book me a flight ticket from AUS to SEA as my meeting purpose.

ASSISTANT: Sure, I will help you. Please help me with your preferred class to fly.

USER: I am ok with any class.

ASSISTANT: Do you need a direct or connecting flight?

USER: I prefer connecting flight.

ASSISTANT: Please help me with your name.

USER: Myself Mary Lopez.

ASSISTANT: Please help me with your planned travelling dates.

USER: I have planned to travel on July 18th and return on July 20th.

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

USER: No thanks.

ASSISTANT: Please allow me a minute.

USER: Ok.

ASSISTANT: We have a connecting flight operated by Spirit Airlines with a fare of 800. Is it ok for you?

USER: Ok, please book it.

ASSISTANT: I have booked you ticket in flight-1024.

USER: Thank you.

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