You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I aid you?

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

ASSISTANT: Sure, can you please let me know your name?

USER: My name is Brian Clark.

ASSISTANT: Please allow me 2-3 minutes.

USER: Ok, take your time.

ASSISTANT: Thank you for waiting. Sorry, there is no active reservation found under your name.

USER: That's ok, thank you for checking.

ASSISTANT: Thank you for reaching us.