You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Jonathan Hall.

ASSISTANT: How can I aid you?

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

ASSISTANT: Sure, I can help  you. Please wait a while.

USER: Ok.

ASSISTANT: Thanks for your time. We didn't found any reservation by this name.

USER: Ok, thank you.

ASSISTANT: Thank you for reaching us.