You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you?

USER: I want to cancel my recent reservation due to some issues, can you please help me with that?

ASSISTANT: Sure, may I know your name?

USER: Sure, I am Margaret Clark.

ASSISTANT: Please give me a moment to check your ticket status.

USER: Sure.

ASSISTANT: I found your reservation and cancelled it.

USER: Thank you for your service.

ASSISTANT: Thank you for choosing us Margaret Clark.