You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you today?

USER: My final exam dates are postponed, can you please help me for changing the existing reservation?

ASSISTANT: Sure, may I know your name to check for the previous reservation?

USER: Sure, my previous reservation is on the name of Jessica Anderson.

ASSISTANT: Please allow me a moment to check for the previous reservation.

USER: Sure.

ASSISTANT: Jessica, there is no reservation found under your name.

USER: No problem, I will search another way to complete my trip.

ASSISTANT: Thank you for contacting us.

USER: Thank you for your information.

ASSISTANT: You are welcome.