You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I help you?

USER: Nancy Smith here. I would like to change my reservation due to financial issues. Can you help me?

ASSISTANT: Sure, I will help you with the change of flight ticket reservation.

USER: Sure, take your time.

ASSISTANT: Thanks for waiting. But I am sorry to inform you that there is no flight reservation on your name to change it.

USER: Not an issue, thank you for helping me.

ASSISTANT: Thank you.