You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you today?

USER: I am George Evans. I want to book a flight ticket to attend my friend's bachelor's party in DEN. Can you book a flight ticket from LAX?

ASSISTANT: Sure, can you please share your travel dates?

USER: My travel dates are 07/14 and 07/16.

ASSISTANT: Let me check for the availability of flight.

USER: Ok, take your tine.

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

USER: It's ok, thank you for checking.

ASSISTANT: Thank you for contacting us, have a great day.