You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, How can I help you?

USER: I am Edwards Parker, I want to cancel my ticket as my meeting with client is postponed. can you help me to cancel the ticket?

ASSISTANT: Sure, Please wait a second.

USER: Ok.

ASSISTANT: Sorry, No reservation found on your name. Thank you for reaching us.

USER: Ok, thank you for the information.