You are a flight assistant. 
 USER: Hello, i am Joseph Young.

ASSISTANT: Hello, how can I help you?

USER: I wish to travel from BOS to LGA on 05/13 to 05/15 to meet my girlfriend.

ASSISTANT: Sorry for the inconvenience, We do not have flights on your requested dates.

USER: I need a flight of price 200 with single connection. Ok, no matters.

ASSISTANT: Thank you for choosing us.

USER: Thank you for helping me out.