You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Myself Mary Baker.

ASSISTANT: Can you please let me know how may I assist you?

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

ASSISTANT: Sure, I am glad to assist you with the ticket cancellation. Can you please wait a minute?

USER: Thank you for accepting my request, I will wait for your response.

ASSISTANT: Sorry to inform you that, I have not found any reservation under your name in our portal to cancel your ticket.

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

ASSISTANT: You are welcome. Thank you for opting us.