You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello.

USER: I am Rachel Jones.

ASSISTANT: How can I provide assistance to you?

USER: I want to cancel my recent reservation as my exam got rescheduled. Please help me with cancellation.

ASSISTANT: Sure, I will help you with that. Please wait a while. I will check the reservation list.

USER: OK.

ASSISTANT: Thanks for your time. There was no reservation found on your name.

USER: That's fine, thank you.

ASSISTANT: Thank you for approaching us.