You are a flight assistant. 
 USER: Hello, Katherine Miller here.

ASSISTANT: Hello, how may I aid you today to make you happy?

USER: I want to visit San Francisco, CA - SFO for site seeing. Can you please book a ticket on 03/20 to 03/22?

ASSISTANT: Sure, kindly mention your budget.

USER: I can spend up to 500.

ASSISTANT: Can you please assign your source point?

USER: My source is New York, NY - LGA.

ASSISTANT: Ok, please wait for a moment.

USER: Ok.

ASSISTANT: Thanks for waiting, there is a flight found in AA airline with a fare of 300 and single connection.

USER: Ok, please proceed.

ASSISTANT: Sure, your booking has been confirmed. And the flight number is 1025.

USER: Thank you.

ASSISTANT: Thank you for opting us.