You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Deborah Lee here.

ASSISTANT:  Deborah Lee, how may I help you?

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

ASSISTANT: Sure, let me check with your details, please wait.

USER: Ok, I will wait.

ASSISTANT: Thank you for waiting and there is no booking status found in our previous ticket booking list to cancel your ticket.

USER: Anyway, thanks for the information.

ASSISTANT: It's my pleasure and thank you for reaching us.