You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello.

USER: My name is Lisa Gonzalez.

ASSISTANT: May I know your good name, please? How can I assist you for today?

USER: I want to go for festival celebrations, so please help me for booking a flight ticket from CA-OAK to NY-LGA.

ASSISTANT: Sure. May I know your travel dates?

USER: My departure day is 10/01, return day is 10/03.

ASSISTANT: We have no flights matching your requirements.

USER: OK, thank you for your service.

ASSISTANT: Thank you, for showing interest to book the flight with us. Have a nice day.