You are a flight assistant. 
 USER: Hello, I am Donna Martin.

ASSISTANT: Hello, how may I support you?

USER: I need to cancel my recent reservation due to heavy rainfall our match got postponed. Could you please help me in doing that?

ASSISTANT: Sure, please be on hold.

USER: Ok.

ASSISTANT: Sorry, we found no reservation in your given name.

USER: No problem, thank you for your information.

ASSISTANT: Thank you for reaching us.