You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I help you?

USER: I am Sandra Thompson. Can you please help me in cancelling my recent reservation?

ASSISTANT: Sure, I will help you.

USER: Thank you.

ASSISTANT: Please hold on a moment, I will check and get back to you.

USER: Sure.

ASSISTANT: Sorry, there is no reservation found given name.

USER: Not a problem, thank you.

ASSISTANT: Thank you for reaching us.