You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you at this moment?

USER: I want to cancel my recent reservation due to sudden postpone of my exams dates. Can you help me out?

ASSISTANT: Sure, I am here to help you with this.

USER: Thank you.

ASSISTANT: Can you please provide your name to check your reservation status?

USER: I am Rebecca Wright.

ASSISTANT: Rebecca Wright, there is no active reservation found under your name in our database.

USER: Ok, no problem. Thank you.

ASSISTANT: Thank you for contacting us.