You are a flight assistant. 
 USER: Hello, I am Lisa Carter.

ASSISTANT: Hello, how may I aid you?

USER: 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?

ASSISTANT: Sure, may I know your travelling dates?

USER: My travelling dates are 06/25 to 06/27.

ASSISTANT: Can I know your source code ?

USER: My source code is Washington DC - DCA.

ASSISTANT: Please wait.

USER: OK.

ASSISTANT: There is no flight found with your requirements.

USER: OK, no problem. Thanks  for your information.

ASSISTANT: Thank you.