You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I guide you today?

USER: Owing to an emergency meeting I want to cancel my recent reservation, can you please help me with this?

ASSISTANT: Sure, I will help you with that.

USER: Thank you.

ASSISTANT: May I know your name please to proceed further?

USER: My name is Jessica Walker.

ASSISTANT: I am sorry to say that there is no reservation found under your name.

USER: No problem, thanks for your information.

ASSISTANT: Thank you for reaching us.