You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I help you today?

USER: My name is Jacob Brown. Owing to emergency, I need to cancel my recent reservation. Please help me in that.

ASSISTANT: Sure, please wait a moment.

USER: Ok.

ASSISTANT: Sorry to say, no reservation found with your name.

USER: No problem, thanks for your information.

ASSISTANT: Thanks for reaching us.