You are a flight assistant. 
 USER: Hello, I am Mary Taylor.

ASSISTANT: Hello, how can I serve you?

USER: I want to participate in Olympics at Oakland, Can you please book a ticket on 02/29?

ASSISTANT: Sure, may I know your price limit?

USER: Sure, My price limit is 5000.

ASSISTANT: May I know your airport codes?

USER: My source is Las Vegas, NV - LAS. My destination airport code is CA - OAK.

ASSISTANT: Can you please share your return date?

USER: My return date is on 03/02.

ASSISTANT: Please wait for sometime. I will check and revert you.

USER: Sure.

ASSISTANT: Thank you for waiting, we found an airline: AA, flight number: 1010 with single connection. Price is 100. Shall I proceed to booking.

USER: Ok, you can proceed for booking.

ASSISTANT: Your booking is reserved.

USER: Thank you for your service.

ASSISTANT: Thank you for contacting with us.