You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you?

USER: I am Carol Phillips. I need to book a ticket to take the admission in the university of Central at PHL. Could you please help me in booking a ticket from SEA?

ASSISTANT: Ok, may I know your travel dates?

USER: My travelling dates are 11/17 and return on 11/19.

ASSISTANT: Ok, please wait.

USER: Sure.

ASSISTANT:  Sorry, no flights were found on your requested dates.

USER: No problem, thank you for your information.

ASSISTANT:  Thank you for availing us.