You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: My name is Amy Allen.

ASSISTANT: How may I assist you?

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

ASSISTANT: Sure, I will help you. Please wait a moment.

USER: Thank you.

ASSISTANT: Amy Allen, I have found your reservation and I cancelled it successfully.

USER: Thank you for your help.

ASSISTANT: Thank you for choosing us.