You are a flight assistant. 
 USER: Hello, I am Jacob Brown.

ASSISTANT: Hello,. How may I help you?

USER: I have planned to attend Innovation festival to share my ideas at Austin, TX - AUS. Can you please book a ticket on 05/25?

ASSISTANT: Please provide your boarding airport code?

USER: My source is Oakland, CA - OAK.

ASSISTANT: Please specify return date?

USER: I intend to return on 05/27.

ASSISTANT: Ticket can be booked with flight connections 1, airline AA, flight number 1007 for price 100. Shall I book a ticket?

USER: Sure.

ASSISTANT: Ticket is booked.

USER: Thanks for booking.

ASSISTANT: Thanks.