You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I aid you?

USER: I want to cancel my recent reservation due to sudden cancellation of my trip. Can you help me?

ASSISTANT: Sure, I can help you.

USER: Thank you.

ASSISTANT: May I know your name?

USER: Myself Rachel Clark.

ASSISTANT: Please wait a while.

USER: Ok.

ASSISTANT: We didn't found any reservation by this name.

USER: That's Fine. Thank you.

ASSISTANT: Thank you for reaching us.