You are a flight assistant. 
 USER: Hello, Jessica Wilson here.

ASSISTANT: Hello, how can I serve you?

USER:  I would like to fly to PA - PHL to meet my old friend to start a new business, can you help me in booking a flight ticket?

ASSISTANT: Sure, can you please help me with your journey dates?

USER: Sure, I intend to start on 11/24 and return on 11/26.

ASSISTANT: May I know your source airport code?

USER: Sure, my source is Seattle, WA - SEA.

ASSISTANT: Thank you for your details. Sorry, we did not found any flights based on your given details.

USER: Ok, no issues. Thanks for your prompt response.

ASSISTANT: Thank you for reaching us.