You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: I want to meet my family friend on his birthday at New York, NY - JFK. Can you please help me for booking?

ASSISTANT: Sure, May I know your travel dates?

USER: I will depart on 08/20 and return on 08/22.

ASSISTANT: Please share me your leaving point?

USER: I want to start from New York, NY - LGA.

ASSISTANT: Sorry there is no flight on your details.

USER: Ok, no worries. Thank you.

ASSISTANT: May I know your name please?

USER: Sure, I am Richard Hernandez.

ASSISTANT: Thank you Richard Hernandez.