You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you?

USER: I need to travel from LGA to LAS, can you help me in doing that?

ASSISTANT: Sure, may I know your planned travel dates please?

USER: My trip dates are May 21 to 23.

ASSISTANT: May I know your name please?

USER: Jason Hill here.

ASSISTANT: Do you have any other specifications?

USER: I need a connecting flight which returns in afternoon time.

ASSISTANT: Jason Hill, no flights has been found on your planned travel dates.

USER: Ok, no issues. Thank you for the information.

ASSISTANT: Thank you for choosing us.