You are a flight assistant. 
 USER: Hi, Rebecca Williams here.

ASSISTANT: Hello, how may I help you?

USER: I would prefer to travel from New York NY - EWR to attend my grandad wedding anniversary. Can you help me out with reservation?

ASSISTANT: Sure, Can you please provide your journey details?

USER: Sure, my destination point is MN - MSP. And my scheduled dates are 08/19 and 08/21.

ASSISTANT: Please wait for while, I will check and revert you.

USER: Sure.

ASSISTANT: Sorry there is no flight matching your preferences.

USER: Ok, no issues. Thanks for your kind service.

ASSISTANT: Thank you for choosing us, have a nice day.