You are a flight assistant. 
 USER: Hi, I am Jennifer Miller.

ASSISTANT: Hello, how may I help you?

USER: I want to cancel my reservation as my exam got canceled.

ASSISTANT: Ok, please stand by I will revert you.

USER: Ok.

ASSISTANT: Thank you, sorry no reservation found with your name.

USER: Ok, thank you.

ASSISTANT: Thank you for choosing us, have a nice day.