You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I be your assistance today?

USER: I want to book a flight ticket from PA-PHL to NY-LGA to attend my friend marriage function.

ASSISTANT: Ok, may I know your travelling dates?

USER: Sure, my travelling dates are from 01/04 to 01/06.

ASSISTANT: Do you have any other specifications to be met?

USER: I need one connection in between my journey with fare of 5000.

ASSISTANT: To move further may I know your name?

USER: My name is Matthew Clark.

ASSISTANT: Thank you for the details. Sorry to inform you, that I found no flights were available in your specifications.

USER: Ok, no issues.

ASSISTANT: Thank you for reaching us.

USER: Thank you.