You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: I would like to visit New York, can you please book my flight ticket from LGA to JFK?

ASSISTANT: Ok, may I know your planned dates for this journey?

USER: I will depart on Aug 1st and return back on Aug 3rd.

ASSISTANT: May I know your good name please?

USER: My name is Larry Evans.

ASSISTANT: Do you need a connecting flight?

USER: Yes, I need a flight having single connection.

ASSISTANT: I am sorry to say, there are no flights available for your journey. Thank you for choosing us.

USER: Not an issue. Thank you for checking.

ASSISTANT: Have a nice day ahead.