You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Angela Davis.

ASSISTANT: How can I aid you now?

USER: I want to celebrate the Science Festival in San Francisco, can you help me to book a plane with a connected flight?

ASSISTANT: Sure, may I know your price and connection limit?

USER: My price limit is 500.

ASSISTANT: Ok, mention your preferred dates?

USER: My preferred dates are from 03/22 to 03/24.

ASSISTANT: Provide your airport codes?

USER: I would like to go from NY - LGA to CA - SFO.

ASSISTANT: There is a flight in UA airline with number 1003 available for you. price is 100 with single connection. Shall I proceed?

USER: Ok, you can proceed for booking.

ASSISTANT: Your ticket has been confirmed successfully.

USER: Thanks for booking in UA airline.

ASSISTANT: Thanks a lot for contacting us, have a nice day.