You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: I want to book a flight ticket from OAK to LAX, can you please help me?

ASSISTANT: Sure, please share your journey dates?

USER: Sure, my planned journey dates are June 1 and June 3.

ASSISTANT: Do you have any specifications?

USER: Yes, I am looking for a connecting flight. And make sure to check with the normal cost airline with business class.

ASSISTANT: May I know your good name?

USER: Myself Pamela Green.

ASSISTANT: Sorry, no flights found on your given details.

USER: That's fine, no issue. Anyway thank you for checking.

ASSISTANT: Thank you for choosing us.