You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello,.

USER: I am Andrew Hill.

ASSISTANT: How can I support you?

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

ASSISTANT: Sure, please be on hold.

USER: Ok.

ASSISTANT: Sorry, there is no active reservation exists in your name.

USER: It's ok, thank you.

ASSISTANT: Thanks for contacting us.