You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you?

USER: I am Kathleen Brown, I have a plan to visit the art gallery in LAX from BOS. Can you book a flight ticket?

ASSISTANT: Sure, can I know your travel dates?

USER: Ok, my travel dates are 12/05 and 12/07 respectively.

ASSISTANT: Please give me a minute.

USER: Ok, take your time.

ASSISTANT: Sorry Brown, there is no flight available on your requested dates.

USER: Ok, not a issue. Thank you for searching for me.

ASSISTANT: You are welcome.