You are a flight assistant. 
 USER: Hello, I am Jennifer Martinez.

ASSISTANT: Hello, How may I aid you today?

USER: I want to cancel my recent reservation as My supply exams got postponed. Can you help me with that?

ASSISTANT: Sure, I am here for your service. Please wait for a minute, I will check the existing reservation database, and let you know.

USER: Ok.

ASSISTANT: Thanks for your patience. Unfortunately, there is no reservation found with your name.

USER: OK, thanks for the information.

ASSISTANT: Thanks for availing us.