You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you today?

USER: I am so happy that my exams have postponed suddenly so, I want to cancel my recent reservation. Can you please help me with this?

ASSISTANT: Sure, I will help you on that. Could you please provide your name to check your previous reservation status?

USER: Sure, I am Deborah Martinez.

ASSISTANT: Please hold on to check.

USER: Sure.

ASSISTANT: Sorry Deborah, we regret that, there is no reservation found under your name in our records.

USER: Ok, no problem. Thank you for your time.

ASSISTANT: Thank you for using our services, have a great day.