You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you at this moment?

USER: I am planning to visit Lady Bird Lake at Austin, could you please help me with booking a flight ticket from OAK to AUS?

ASSISTANT: Sure, can you please share your travel dates?

USER: I would like to depart on Dec 23rd and return on Dec 25th.

ASSISTANT: May I know your airline preference?

USER: I am comfortable with any airlines.

ASSISTANT: Do you have any connection limit?

USER: I am looking for a connecting flight.

ASSISTANT: Do you have any other requirements?

USER: I have no other requirements.

ASSISTANT: May I know your name please?

USER: I am Jacob Walker.

ASSISTANT: AA airlines is having a connecting flight with a ticket fare of 100, shall I proceed with booking?

USER: Yes, please confirm the booking.

ASSISTANT: Your ticket has been confirmed with the flight-1000 in economy class.

USER: I really appreciate your help, thank you for your service.

ASSISTANT: Welcome, have a safe trip.