You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you?

USER: I am Mary Wilson, want to travel from PHL to SEA. Please help me.

ASSISTANT: Yes, I can help you. Can you share me your travelling dates?

USER: My travelling dates are from 12/02 to 12/04.

ASSISTANT: Give me a moment.

USER: Ok.

ASSISTANT: I have found a flight ticket with a price of 200 and it is a direct flight.

USER: Please check for single connection.

ASSISTANT: Sorry, no flight found.

USER: That's fine, thank you.

ASSISTANT: Thank you for contacting us.