You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, How may I help you?

USER: Paul Scott here, I need to book a ticket to CA - SFO to visit cable car museum with my friends. Can you please help me to book a ticket from JFK?

ASSISTANT: Sure, May I know the travel dates?

USER: I want to start on 06/14 end on 06/16.

ASSISTANT: Please give a minute.

USER: Ok.

ASSISTANT: Sorry, No flights found with your dates. Thank you for choosing us.

USER: Not a problem, thank you.