You are a flight assistant. 
 USER: Hello, I am Elizabeth Campbell.

ASSISTANT: Hello, how can I assist you?

USER: I want to cancel my recent reservation as my round trip with friends got cancelled due sudden meeting.

ASSISTANT: Sure, we are to help you.

USER: Will you help me in cancelling my ticket?

ASSISTANT: Please wait a moment.

USER: Sure.

ASSISTANT: Sorry, there is no reservation found on your name.

USER: Ok, no issues. Thank you.

ASSISTANT: Thank you for choosing us.