You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: My name is Rachel Jones.

ASSISTANT: How can I serve you?

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

ASSISTANT: Sure. Give me a minute.

USER: Ok, take your time.

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

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

ASSISTANT: Thank you for reaching us.

USER: Welcome.