You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello, how can I aid you?

USER: Please cancel my reservation, which is reserved earlier with the name of Brenda Edwards. As my manager did not approved my leave on my journey day.

ASSISTANT: Sure, I will help you in that.

USER: Thank you.

ASSISTANT: Please be hold on for a while, I will check the reservation with your name.

USER: Sure, I will wait for your response.

ASSISTANT: There is no reservation found on your specified name.

USER: Ok, no problem. May be I reserved with some other airline.

ASSISTANT: Ok. Thank you for approaching us.

USER: Thank you for the instant response.