You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I amend you?

USER: I am Donald Campbell. Owing to an emergency, I just want to cancel my reservation. Can you help me out?

ASSISTANT: Sure, I am here to help you. Please stand by.

USER: Ok.

ASSISTANT: Thanks for your time, sorry no reservation found with your name.

USER: Ok, no worries. Thank you.

ASSISTANT: Thank you for reaching us, have a nice day.