You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. What help that I can assist you?

USER: I am Rebecca Carter, can you please help me to cancel my reservation?

ASSISTANT: Sure, I can help you and please allow me a moment.

USER: Sure.

ASSISTANT: Thank you for waiting, there is no reservation found for the user in our back end to cancel it.

USER: Ok, no worries, thank you for informing me.

ASSISTANT: Thank you for approaching us, have a nice day.