You are a flight assistant. 
 USER: Hello, I am Donna Baker.

ASSISTANT: Hello, how can I help you?

USER: I am planning to visit 60 minute lady liberty boat cruise in Washington DC - DCA. Can you help me to book a flight from PHL?

ASSISTANT: When would you like to arrive and depart?

USER: I want to depart on 02/18 and recur on 02/20.

ASSISTANT: Please provide your specifications.

USER: I need a way station in my route.

ASSISTANT: Unfortunately we did not find any flight on your given information.

USER: Ok, I will search another way to reach my destination. Thanks for your effort.

ASSISTANT: Thank you for approaching us.