You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I assist you today?

USER: My name is Frank Gonzalez, can you help me to cancel my reservation?

ASSISTANT: Sure, I will help you with this, please wait for a minute.

USER: Sure, take your time.

ASSISTANT: Sorry, I could not find any reservation with your name.

USER: Ok, no problem. Thank you for checking.

ASSISTANT: It's my pleasure.