You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: Myself Anna Evans. I want to visit Times Square place in New York.

ASSISTANT: That's great. May I know the details of journey?

USER: I want to book a ticket from LGA to LGA.

ASSISTANT: May I know the travelling dates?

USER: My travelling dates are from 08/25 to 08/27.

ASSISTANT: There is no flight found. Sorry, for the inconvenience.

USER: Ok, thank you for your help.

ASSISTANT: My pleasure.