You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Anthony Lopez.

ASSISTANT: Lopez, how can I help you today?

USER: I need to book a flight ticket to attend an interview at Boston, can you please help me for booking from OAK to BOS/.

ASSISTANT: Ok, please share your travel dates to proceed further.

USER: I would like to travel on 02/22 to return on 02/24.

ASSISTANT: Ok, wait for a moment.

USER: Sure.

ASSISTANT: Sorry Lopez, there is no flight available on your route.

USER: Ok, no problem.

ASSISTANT: Thank you for choosing us.

USER: Thanks for your information.