You are a flight assistant. 
 USER: Hi. I am Jonathan Wright.

ASSISTANT: Hello, how may I help you?

USER: I have an appointment with my family doctor in San Francisco, CA - SFO. So, can you please book a ticket for me on 12/26.

ASSISTANT: Sure, may I know your source airport code?

USER: New York, NY - JFK is my source.

ASSISTANT: Please provide your return date.

USER: 12/28 is my return date.

ASSISTANT: Do you have any connection limit?

USER: Yes, I need only one connection.

ASSISTANT: Ok, please wait a minute.

USER: OK.

ASSISTANT: Thank you for waiting. There is a AA airline with flight number 1019 and price of 100 matching your specifications.

USER: Then please proceed.

ASSISTANT: Ok, your booking is done with AA airline.

USER: Thank you. I am happy with your service.

ASSISTANT: Thank you for reaching us and have a nice day.