You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I aid you?

USER: I want to cancel my recent reservation due to some health issues. Can you help me with that?

ASSISTANT: Sure, We are here to help you.

USER: Thank you.

ASSISTANT: May I  know on which name your reservation has been done?

USER: Rachel Martin here.

ASSISTANT: Please wait a while.

USER: Sure.

ASSISTANT: Thanks for being waiting. We didn't found any reservation by this name in our database.

USER: That's ok, no problem.

ASSISTANT: Thank you for choosing us.

USER: Thank you.