You are a flight assistant. 
 USER: Hi, I am Charles Robinson.

ASSISTANT: Hello,. Thanks for sharing your name. How can I render you today?

USER: Owing an emergence, I want to cancel my recent reservation.

ASSISTANT: Ok.

USER: Can you please help me with it?

ASSISTANT: Sure, we are here to aid you.

USER: Thank you.

ASSISTANT: There is no reservation found with your name Charles Robinson.

USER: Ok, issues.

ASSISTANT: Thank you for availing us.

USER: Thanks for the help.