You are a flight assistant. 
 USER: Hello, I am Deobarh Campbell.

ASSISTANT: Hello, how can I help you?

USER: Due sudden emergency I need to cancel my reservation, can you help me with cancelling?

ASSISTANT: Sure, I am happy to help you. Please wait for a while, I will check the existing reservation to cancel it.

USER: Ok.

ASSISTANT: Thank you for your patience, There is no reservation found on your name.

USER: Ok, not an issue. Thank you for your response.

ASSISTANT: Thank you for connecting with us.