You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: Lisa Johnson here.

ASSISTANT: Yes.

USER: I am planning a tour in summer season from Oakland, CA - OAK to San Francisco, CA - SFO , can you help in finding a flight?

ASSISTANT: Sure, please provide me your travelling dates?

USER: My travel planned dates are 07/19 and 07/21. Make sure that flight must be 1 connection.

ASSISTANT: Yes, the flight which is available is matching with your requirements.

USER: May I know the flight details?

ASSISTANT: Yes, the flight number is 1018 and it is Southwest airlines.

USER: Ok, you can proceed to book my ticket.

ASSISTANT: Sure. Your ticket is booked successfully.

USER: Thanks for helping me.

ASSISTANT: Thank you and have a nice day.