You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you today?

USER: Due to inconvenience of my work, I want to cancel my reservation. Can you please help me for that?

ASSISTANT: Ok, please can you provide me your name to cancel?

USER: My name is John Miller.

ASSISTANT: Ok, please wait a moment.

USER: Ok, I will wait.

ASSISTANT: Sorry, there are no reservations found on your name to proceed as per your concern.

USER: Anyway, thanks for the information.

ASSISTANT: My pleasure, thank you for choosing our agency.