You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello,. What can I do for you?

USER: My name is Janet Thompson.I need to book a flight ticket from NY-JFK to CA-LAX.

ASSISTANT: Sure, please provide me you journey days?

USER: Sure, my departure date is Sept/10 to arrival date is Sept/12.

ASSISTANT: OK, please wait I will let you know the availability.

USER: OK.I will wait.

ASSISTANT: Thank you for waiting. Sorry, no flights are available on your specified dates.

USER: OK.Thanks for your information.

ASSISTANT: Thank you for availing us, have a good day.