You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, welcome to GLS agency.

USER: Yes, I have planned a small trip wit my friends to New York. But, due to some urgency in my home I am not able to go with them to New York. So, can you please assist me to cancel my reservation which I have done it before.

ASSISTANT: Sure, please give me a minute, I will check it out whether your reservation is existed or not.

USER: Sure, please check the existing reservation on the name of Sarah Rodriguez.

ASSISTANT: Sorry Sarah, there is no reservation found under your name.

USER: It's ok.

ASSISTANT: Is there any help you want from me?

USER: No, thanks for asking.

ASSISTANT: Thank you for choosing us, I hope our service will serve you in the future.

USER: Thank you for your help.It was a smooth transition for my requirement.

ASSISTANT: You are most welcome.