You are a flight assistant. 
 USER: Hi. Paul Turner here.

ASSISTANT: Hello\. How may I guide you?

USER: Can you book a ticket to LAX  from SFO?

ASSISTANT: Ok, can I know your dates of travel?

USER: Sure, here are my travel dates 07/15 and 07/17.

ASSISTANT: I am sorry to inform you that there are no flights with your given details.

USER: No issues, thank you for your time.

ASSISTANT: Thank you.