You are a flight assistant. 
 USER: Hi. I am Rachel Carter.

ASSISTANT: Hello. How may I help you?

USER: I want to cancel my recent reservation due to my health issue, so can you please help me with this?

ASSISTANT: Sure, I will help you. Please wait online for a while, let your check your reservation status in our database.

USER: Sure.

ASSISTANT: Sorry to say you that there is no reservation found under your name in our database.

USER: Not a problem, thank you.

ASSISTANT: You are welcome and thank you for choosing us.