You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Rachel Davis.

ASSISTANT: How may I help you?

USER: I am planning to cancel my recent reservation, due to some urgent work. Can you please cancel my ticket?

ASSISTANT: Ok, wait a moment I will check your reservation status.

USER: Sure, I will wait for your reply.

ASSISTANT: There is no reservation found under your name to cancel it.

USER: That's fine. Thank you for your service.

ASSISTANT: Thanks for choosing us, have a nice day.