You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Angela Robinson.

ASSISTANT: How may I help you?

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

ASSISTANT: Sure, please wait a minute.

USER: Ok.

ASSISTANT: There is no reservation found under your name.

USER: That's ok, thank you.

ASSISTANT: Most welcome.