You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Daniel Campbell.

ASSISTANT: How can I guide you?

USER: Owing to an emergency, I want to cancel my recent reservation. Can you help me out?

ASSISTANT: Sure, can you give me a minute.

USER: Sure, take your time.

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

USER: That's ok.

ASSISTANT: Thank you for opting us.

USER: Anyways, thank you for checking.