You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Stephanie Campbell.

ASSISTANT: How can I aid you today?

USER: I need to cancel my reservation due to some personal issues.So can you help me with cancellation of my reservation?

ASSISTANT: Sure, I will help you with that.

USER: Thank you.

ASSISTANT: I found your reservation and it successfully cancelled.

USER: Thank you.

ASSISTANT: Thank you for reaching us.