You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello, how can I help you?

USER: I am Ruth Evans. I would like to attend Offshore Technology Conference in Oakland, OAK. Can you please help me in booking with direct flight?

ASSISTANT: Sure, please provide your source point.

USER: My source point is Charlotte, CLT.

ASSISTANT: Ok, when do you want to travel?

USER: I want to start my journey on 10/26 and arrival on 10/28.

ASSISTANT: Ok, please wait for a while.

USER: Sure.

ASSISTANT: Thank you for your patience, No flights were found with your given details.

USER: Ok, no problem. Thank you for your information.

ASSISTANT: Thank you for choosing us.