You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: Brenda Garcia here.

ASSISTANT: Yes Garcia, what can I do for you?

USER: Due to some important work in my office, I want to postpone my trip. Can you cancel my recent reservation?

ASSISTANT: Sure, give me a moment.

USER: Ok.

ASSISTANT: Sorry Garcia, there is no reservation found with your name. Thank you for choosing us.

USER: It's ok. Thank you.