You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: Sarah Thompson here. I just want to cancel my recent reservation, because my exams was postpones.

ASSISTANT: Ok, wait for a while. I will check is there any reservation on your name.

USER: Ok.

ASSISTANT: Sarah Thompson no reservations done on your name.

USER: It's Ok. Thank you for your services.

ASSISTANT: Thank you for choosing us.