You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I help you?

USER: I need to cancel my recent reservation because my exam has been postponed.

ASSISTANT: OK, can you provide me your good name?

USER: My name is Stephanie Martinez.

ASSISTANT: There is no reservation found on your name.

USER: It's not a problem.

ASSISTANT: Thank you, for reaching us.

USER: Thank you for your great response.