You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you today?

USER: Elizabeth Evans here. I have a plan to visit Oracle.

ASSISTANT: Ok.

USER: So, can you please help me in booking flight ticket to Oakland, CA - OAK?

ASSISTANT: Sure, we are euphoric to help you.

USER: Thank you.

ASSISTANT: When did you scheduled to travel?

USER: My travel dates are 03/24 - 03/26.

ASSISTANT: Do you have any other requirements?

USER: I need a connecting flight.

ASSISTANT: Please share me your boarding point?

USER: My source point is MA - BOS.

ASSISTANT: Sorry to inform you that,there are no flights are available with your requirements.

USER: Ok, it is not an issue. Thank you for your service.

ASSISTANT: Thank you for reaching us, we hope to serve you, better for the next time.