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

ASSISTANT: Hello, how can I assist you?

USER: I want to visit Lake Harriet at MSP, can you please book a ticket for me?

ASSISTANT: Sure. Can you please provide the travelling dates?

USER: I intend to travel on 08/12 to 08/14.

ASSISTANT: Do you have any limitations?

USER: Price 5000. I need 1 connection.

ASSISTANT: Please share your airport codes.

USER: Origin: DFW.

ASSISTANT: Thanks for the information. We did not found any flights matching your criterion.

USER: Ok. Thank you.

ASSISTANT: Thanks for choosing us.