You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you today?

USER: I am Mark White. Will you help me in booking a flight ticket from LGA to AUS?

ASSISTANT: Sure Mark, can you please provide me with your dates of travel?

USER: I will start on Aug 28 and return on Aug 30.

ASSISTANT: Please wait for a moment to check for the availability.

USER: Sure.

ASSISTANT: I found a flight with the connecting flight of fare 100 and the airline is Spirit, shall I book this ticket?

USER: Please proceed with the booking.

ASSISTANT: Ok, your booking is done with the flight number 1027.

USER: Thank you for your kind service.

ASSISTANT: You are welcome, have a safe journey.