You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Carol Roberts here.

ASSISTANT: How can I assist you today?

USER: Due to some personal issue, I want to cancel my recent reservation. Can you help with that?

ASSISTANT: Sure Carol, wait for a minute.

USER: Sure, take your own time.

ASSISTANT: Yes Carol, your reservation is successfully cancelled.

USER: Thanks for your help and great service.

ASSISTANT: Thank you for consulting us.