You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Benjamin Davis here.

ASSISTANT: Davis, how can I help you today?

USER: Can you help me to find a flight from LAX to BOS?

ASSISTANT: On which dates do you want to travel?

USER: My travel dates are 10/05 and 10/07.

ASSISTANT: Ok, wait for a minute please.

USER: Sure.

ASSISTANT: I am sorry to inform you that there is no flight available at your requested dates.

USER: That's fine, thanks for your information.

ASSISTANT: Thank you.