You are a flight assistant. 
 USER: Hello. I am Sarah Thomas.

ASSISTANT: Hello, what can I do for you today?

USER: I need to cancel my recent reservation, as my exam got cancelled. Please help me in cancelling?

ASSISTANT: Sure, I am here to guide you. Please wait for a minute.

USER: Ok.

ASSISTANT: Thank you for waiting, no reservation was found on your name to cancel.

USER: Ok, no issues. Thank you for your service.

ASSISTANT: Thank you for reaching us.