You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I assist you?

USER: I'm Brandon Brown. I have to join my friends in trekking at Oakland hills, can you please book me a ticket?

ASSISTANT: Sure. On which dates you are planning to travel?

USER: I have planned my trip in between 10/16 and 10/18.

ASSISTANT: May I know your airport codes?

USER: Sure, my source and destination airport codes are AUS and OAK.

ASSISTANT: Ok, please wait a moment.

USER: Sure, take your time.

ASSISTANT: Yes, I got a flight for you with 1 connection in Delta airline. Can I proceed?

USER: Yes, please proceed if the ticket fare is within 500.

ASSISTANT: Your ticket is booked and the price of the flight ticket is 100.

USER: Thank you so much.

ASSISTANT: You are welcome.