You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you for today?

USER: I am Mark Edwards. I would like to book a direct flight to SEA from PHL in the month of March.

ASSISTANT: May I know your travelling dates?

USER: I am travelling on these days 03/18 and 03/20. Make sure my connection limit is 0.

ASSISTANT: Sorry to say this Mark, there are no flights.

USER: Ok no problem, thank you for your services.

ASSISTANT: Most welcome, thank you for reaching out here.