You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I help you?

USER: Can you help me to cancel my reservation?

ASSISTANT: Sure, may I know your name please?

USER: Sure, my name is Donald Thompson.

ASSISTANT: Wait a while, kindly.

USER: Ok.

ASSISTANT:  Sorry, there is no reservation found for the user name in our back end to cancel it.

USER: No issues, thank you for your information.

ASSISTANT: Thank you for reaching us.