You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: Due to the inconvenience work, I need to cancel my existing reservation. Can you please help me out?

ASSISTANT: Sure, I can do that for you. Please let me know your name.

USER: Sure, myself Charles Edwards.

ASSISTANT: Thank you. Please wait, let me check your reservation status in our database.

USER: Sure, I will wait for your response.

ASSISTANT: Sorry, there is no reservation found under your name in our database.

USER: Not an issue, anyway thank you for the information.

ASSISTANT: You are welcome and thank you for contacting us.