You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, good evening!.

USER: Very good evening! I am Jennifer Lee.

ASSISTANT: Lee, how can I render you today?

USER: Actually, I have approached your agency to cancel my recent reservation because my visiting place is held in emergency. Will you please help me with this?

ASSISTANT: Sure, our agency is providing cancellation service also. Please be on hold while I'll check your reservation is existing or not in our database.

USER: Sure, I will wait for your response. Please resolve my issue soon.

ASSISTANT: Jennifer, I have checked our database but there is no reservation found under your name to do cancellation.

USER: Oh! That seems my brother has already cancelled my reservation on behalf of me.

ASSISTANT: Yes, may be that's the reason.

USER: Anyways, thank you for providing information.

ASSISTANT: My pleasure, thank you so much for opting us. Have a great day.