You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you?

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

ASSISTANT: Sure, I am here to aid you.

USER: Thank you.

ASSISTANT: Ok, please mention your name to proceed further.

USER: My name is Joseph Brown.

ASSISTANT: Ok, please wait for a moment.

USER: Sure, I will wait for your information.

ASSISTANT: Thank you for your time, we did not find any reservation on your name to cancel it.

USER: Ok, not an issue. Thank you for providing information.

ASSISTANT: Thank you for opting us.