You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, How can I assist you?

USER: I need to attend for a family function in LAS. Can you please make a reservation from LGA?

ASSISTANT: Sure, May I know the travelling dates?

USER: I want to travel on Sept 18 and need to return on Sept 20.

ASSISTANT: Do you have any connection limit?

USER: I need a flight with single connection.

ASSISTANT: Is there any other requirements?

USER: No.

ASSISTANT: May I know your name?

USER: I am Jonathan Hernandez.

ASSISTANT: Please wait a minute.

USER: Sure.

ASSISTANT: Sorry, No flights found with your selected dates.

USER: Ok, not an issue. Thank you for checking.

ASSISTANT: Thank you for choosing us.