You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: Angela Allen here.

ASSISTANT: How can I aid you?

USER: Due to some health issues, I'm unable to catch the flight. Can you please cancel my recent reservation?

ASSISTANT: Sure, give me a minute.

USER: Ok, I'll wait.

ASSISTANT: Sorry, there is no reservation found under your name.

USER: Oh! May be my friend has cancelled that already. Thank you anyways.

ASSISTANT: Thank you for opting us.