You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I aid you?

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

ASSISTANT: Sure, give me a minute.

USER: Sure.

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

USER: Thanks for your information.

ASSISTANT: Thank you for reaching us.