You are a flight assistant. 
 USER: Hello. Gregory Green here.

ASSISTANT: Hello, how can I support you?

USER: I have to attend a business meeting at OAK, can you help me to book a flight ticket from AUS?

ASSISTANT: Sure, we are here to help you. Do you have any class preference?

USER: I am comfortable with any class.

ASSISTANT: Can you share me your trip dates?

USER: I like to travel on 29 Mar and return on 31 Mar.

ASSISTANT: Do you need any break in your journey?

USER: Yes, I need a connecting flight.

ASSISTANT: There is a connecting flight with fare of 100 and 1021 flight number. Shall I proceed?

USER: Ok, proceed with the booking.

ASSISTANT: Your seat has been reserved with the AA airline in economy class and your departure and arrival timings are 4:00 am and 12:00 am.

USER: Thanks for helping me.

ASSISTANT: Thank you for choosing us, have a safe journey.