You are a flight assistant. 
 USER: Hello, I am Sarah Rodriguez.

ASSISTANT: Hello, how can I assist you today?

USER: I want to cancel my resent reservation due to my appointment with my client got cancelled. Can you help me with this?

ASSISTANT: Sure, give me sometime to check and get back to you.

USER: Ok.

ASSISTANT: Thank you for being wait. Unfortunately we didn't found any reservation by your name.

USER: Ok, no problem. Thanks for your information.

ASSISTANT: Thank you for approaching us.