You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you today?

USER: Could you please help me to book a business class ticket with single connection to Oakland?

ASSISTANT: Sure, may I know your planned travel dates?

USER: I need to depart on May 8th and my return date will be on May 10th.

ASSISTANT: Please share me your source and destination points.

USER: My boarding and landing airport codes are ATL and OAK.

ASSISTANT: Do you have any other specifications?

USER: No.

ASSISTANT: Your good name please.

USER: Alexander Jackson.

ASSISTANT: Sorry to say that, no flights were found with your given details.

USER: Ok, not an issue.

ASSISTANT: Thank you for reaching us.

USER: Thank you for your information.