You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: I'm Katherine White. I am planning to travel from BOS to LGA to attend music concert at New York.

ASSISTANT: Ok, on which dates you are planning to travel?

USER: Sure, I would like to take off on 07/23 and return back from New York on 07/25.

ASSISTANT: Sorry Katherine, there is no flight on these dates.

USER: Ok, no issues. I will try another way to complete my trip. Thank you for checking.

ASSISTANT: Most welcome.