You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you?

USER: I am planning to visit Oakland, can you please book me a ticket from LAX to OAK?

ASSISTANT: Sure, I am here to help you out. May I know your travelling dates please?

USER: My preferable journey dates are May 05 and May 07.

ASSISTANT: Can you please share your connection limit?

USER: I prefer single connection flight.

ASSISTANT: Is there any time concern?

USER: I prefer to return in morning flight.

ASSISTANT: Do you have any class preference?

USER: No.

ASSISTANT: Can you please share your name?

USER: My name is Michael White.

ASSISTANT: Do you have any other specifications?

USER: No, thanks for asking.

ASSISTANT: Michael White, there are no flights available in your route.

USER: Ok, not an issue. Thank you for providing information.

ASSISTANT: Thank you for choosing us.