You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you today?

USER: Can you please help me to cancel my recent reservation?

ASSISTANT: Sure, can I have your name please?

USER: Thank you. My name is Sarah Taylor.

ASSISTANT: Ok, please wait for a while.

USER: Ok, take your time.

ASSISTANT: Thanks for waiting, there is no active reservation on your given name.

USER: It's ok, not  a problem with that. Thank you for your valuable time.

ASSISTANT: Thank you for opting us.

USER: Most welcome.