You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, do you need any help from us?

USER: I am planning to travel from OAK to LAX, help me in booking a flight?

ASSISTANT: Sure, could you please share your departure and arrival day?

USER: I don't have specifications days for travelling.

ASSISTANT: Ok, could I have your name please?

USER: I am Deborah Phillips.

ASSISTANT: Ok, may I know your trip dates?

USER: My travelling dates are Feb 26 to 28.

ASSISTANT: Ok, do you need direct or connecting flight?

USER: I prefer single connection flight.

ASSISTANT: Ok, do you have any other specifications?

USER: I want to travel in Business class.

ASSISTANT: Sorry, there is no flight with your requested class.

USER: That's ok, thank you.

ASSISTANT: You are welcome, have a great day.