You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Rachel Evans.

ASSISTANT: How may I aid you today?

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

ASSISTANT: Sure, I will help you with that. Please wait for a while.

USER: Ok.

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

USER: That's ok. Anyways, thank you for your help.

ASSISTANT: Thank you for reaching us, have a great day.