You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you today?

USER: I am Patricia Young. I need to book a flight ticket from PHL to SEA, could you please help me with booking a connecting flight?

ASSISTANT: Sure, please share me your planned journey dates?

USER: Sure, my travelling dates are Oct 18 and Oct 20.

ASSISTANT: Do you have any other requirement related to booking?

USER: No, I do not have any other requirements.

ASSISTANT: Please wait for a moment, while I search for the flight availability.

USER: Sure.

ASSISTANT: Thank you for waiting, sorry there is no flight available on your given journey dates.

USER: No problem, thank you for the information.

ASSISTANT: Thank you reaching us, have a nice day ahead.