You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you today?

USER: I am Raymond Adams, I want to book a flight on 11/30 to meet my friend on his birthday. Can you book a connecting flight for me?

ASSISTANT: Sure, let me know your airport codes?

USER: I will fly from WA-SEA to PA-PHL.

ASSISTANT: Ok, let me know your return date please?

USER: I will return on 12/02.

ASSISTANT: Ok, please hold on a moment.

USER: Sure.

ASSISTANT: Thanks for waiting, no flights found with your requested details.

USER: Ok, thank you for the details.

ASSISTANT: Thank you for opting us.