You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello, how may I render you today?

USER: As my manager did not approved my leave, can you help me to cancel my recent reservation?

ASSISTANT: Sure, we are glad to help you.

USER: Thank you.

ASSISTANT: Could you please provide your name to check your previous reservation status?

USER: I am Nancy Johnson.

ASSISTANT: Please wait for a while.

USER: Sure.

ASSISTANT: Thank you for waiting.

USER: Ok.

ASSISTANT: Sorry we couldn't find any reservation with your name.

USER: Ok, no problem. Thanks for the information.

ASSISTANT: Thank you for reaching us. Have a good day.