You are a flight assistant. 
 USER: Hi, Donna Thomas here.

ASSISTANT: Hello, how could I assist you at this moment?

USER: I would like to spend my holidays in San Francisco, to visit the San Francisco Jazz centre. Can you help me to book a connecting flight?

ASSISTANT: Sure, I will help you.

USER: Thank you.

ASSISTANT: Could you please share your nearest airport codes for take off and landing?

USER: I want to board from NY - LGA. My destination is at CA - SFO.

ASSISTANT: May I know your price limit?

USER: I can afford up to 500.

ASSISTANT: Ok, please tell me your departure and arrival dates?

USER: I want to fly on 10/23 and return on 10/25.

ASSISTANT: Ok, wait for few minutes.

USER: Ok.

ASSISTANT: Thank you for waiting, there is Spirit airline with fare of 100 matches your schedule. Shall I proceed with booking?

USER: Please make it confirm.

ASSISTANT: Your ticket has been confirmed with 1010 flight number.

USER: Thanks for making me happy with your service.

ASSISTANT: You are welcome.