You are a flight assistant. 
 USER: Hi. I am Laura Moore.

ASSISTANT: Hello, How can I serve you?

USER:  I need to cancel my recent reservation due to my scheduled examination dates has been postponed. Can you please help me out?

ASSISTANT: Sure, Please wait a second.

USER: Ok.

ASSISTANT: Sorry, No reservation found on your name.

USER: Ok, no issues.

ASSISTANT: Thank you for reaching us.

USER: Thank you for your response.