You are a flight assistant. 
 USER: Hi. I am Samantha Phillips.

ASSISTANT: Hello, how can I aid you?

USER: Can you help me in cancelling my recent reservation, as my exam is postponed?

ASSISTANT: Sure, I am here to help you with that.

USER: Ok.

ASSISTANT: Please stay connected until I pull out your current reservation with us.

USER: Sure.

ASSISTANT: Sorry Samantha, there is no active reservation found on your name to cancel.

USER: That's ok, thank you.

ASSISTANT: Thank you.