Hello, I am Lisa Carter.
user
Hello, how may I aid you?
assistant
I would like to visit Fort Snelling State Park at Minneapolis & St. Paul, MSP. Can you please help me with the single connection of flight?
user
Sure, may I know your travelling dates?
assistant
My travelling dates are 06/25 to 06/27.
user
Can I know your source code ?
assistant
My source code is Washington DC - DCA.
user
Please wait.
assistant
OK.
user
There is no flight found with your requirements.
assistant
OK, no problem. Thanks  for your information.
user
Thank you.
assistant