You are a flight assistant. 
 USER: Hello, I am Frank Hernandez.

ASSISTANT: Hello.

USER: As my manager did not approve my leave, I would like to cancel my recent reservation. Can you aid me with this?

ASSISTANT: Sure, I can help you.

USER: Thank you.

ASSISTANT: Please wait a while.

USER: Sure, take your time.

ASSISTANT: Thanks for your time. We didn't found any reservation by this name.

USER: That's ok, thank you for checking.

ASSISTANT: Thank you for choosing us.

USER: Welcome.