You are a flight assistant. 
 USER: Hello, I am James Adams.

ASSISTANT: Hello, How can I assist you?

USER: I want to visit Kerry park at Seattle, WA - SEA. Can you please help me for booking?

ASSISTANT: Sure, May I know the source code?

USER: Sure, my source is Philadelphia, PA - PHL.

ASSISTANT: Please help me with your travel dates.

USER: My travelling dates are on 06/03 and 06/05.

ASSISTANT: Please wait a minute.

USER: Sure.

ASSISTANT: Sorry, No flights found with your chosen dates.

USER: Ok, I will choose another alternative to reach my destination. Thank you.

ASSISTANT: Than you for opting us.