Hi, I am Patrick Nelson.
user
Hello. How can I help you?
assistant
As I am planning to attend a live concert in New York on 06/21 and my return date will be on 06/23, can you help me in booking?
user
Sure, may I  know your airport codes please?
assistant
My source and destination airport codes are DTW to LGA.
user
Just a moment please.
assistant
Ok, make sure I need a direct flight.
user
I am sorry to say, no flights found on your route.
assistant
No issues, I'll choose any alternative to reach my destination. Thank you.
user
Thank you for choosing us.
assistant