You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: Due to an emergency, I would like to cancel my recent reservation. Can you help me with this?

ASSISTANT: Sure, I am gleeful to help you. Could you please provide your name to check your reservation status?

USER: My name is Ryan Roberts.

ASSISTANT: Ok, please wait a moment I will check your complete details and proceed further.

USER: Sure, take your own time.

ASSISTANT: Sorry to say, I did not find any reservation in my database under your name.

USER: Ok, not an issue. May be something went wrong while booking. Thank you for providing information.

ASSISTANT: Thank you for choosing us, have a nice day.