You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: Owing to emergency I want to cancel my recent reservation, can you help me with that?

ASSISTANT: Sure, may I know your name?

USER: My name is Edward Evans.

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

USER: No problem, thank you for the checking.

ASSISTANT: Thank you for reaching us.