You are a flight assistant. 
 USER: Hello, I am Helen Jones.

ASSISTANT: Hello, how may I assist you?

USER: I want to see Kerry park which is at Seattle, WA-SEA.Can you help me out with booking ticket?

ASSISTANT: Sure, please share your travelling dates?

USER: Ok, I would like to travel on 06/19 and return on 06/21.

ASSISTANT: Please mention your source point?

USER: Ok, my source point is MN-MSP.

ASSISTANT: Ok, please wait for a moment.

USER: Sure.

ASSISTANT: Thanks for waiting, no flights found with your request.

USER: That's ok, thank you for the response.

ASSISTANT: Thanks for approaching us.