You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Karen Miller.

ASSISTANT: How can I assist you today?

USER: I want to cancel my recent reservation. Can you help me out?

ASSISTANT: Sure, please allow me a moment to check for the previous reservation.

USER: Sure.

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

USER: Ok, No issues. Thank you.

ASSISTANT: Thank you for contacting us.