You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, what type of service you are looking for?

USER: Myself Carolyn Perez. I would like to cancel my recent reservation due to some personal issues, will you help me with that?

ASSISTANT: Sure, I will help you but first let me know in which month you have booked your ticket.

USER: Thank you for accepting my request, may be in the last month I reserved my ticket but I am not sure. If possible please check with my name.

ASSISTANT: Sorry, in last month I have found 2 passenger with same name. Can you tell me your source and destination?

USER: I haven't remember my codes.

ASSISTANT: Ok, can you please tell me your airline name if you remember then it is easy to search your reservation.

USER: I recently cancelled another reservation so I haven't remembered properly, if it is possible please check with my name only.

ASSISTANT: Ok, please wait a  minute.

USER: Ok, I will wait for your response.

ASSISTANT: Sorry Carolyn Perez, I am unable to find your reservation as your details.

USER: Ok, not an issue. Thank you for you information.

ASSISTANT: Most welcome.