You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: My trip to Los Angeles with my friend has been postponed. I need your help in cancelling my recent reservation.

ASSISTANT: Sure, may I know your name for ticket cancelling purpose?

USER: My name is Stephen Turner.

ASSISTANT: Ok, please wait a moment.

USER: Sure, take your time.

ASSISTANT: No reservation found on your name Stephen Turner.

USER: Ok, no issues.

ASSISTANT: Would you want to know anything else?

USER: No Thanks.

ASSISTANT: Thank you for contacting us.

USER: Thank you for your help.

ASSISTANT: You are welcome.