You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, what can I assist you?

USER: I have planned and reserved my ticket for Denver but I am not interested in completing my journey, so can you please cancel my recent reservation?

ASSISTANT: Yes, I am at your service.Can you please let me know your name?

USER: I have reserved my ticket in the name Melissa Perez.

ASSISTANT: But, Williams I don't find any reservation on your name.

USER: Ok, fine thank you for you information.

ASSISTANT: Thank you for reaching out here.