You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you today?

USER: My friend engagement has postponed to next month, so, I want to cancel my recent reservation. Will you please help me with this?

ASSISTANT: Sure, I will help you with that. Will you please provide your name for checking the reservation?

USER: Yes, I am Stephen Scott.

ASSISTANT: Please give me a moment. There is no reservation found under your name.

USER: That's ok. Thank you for your information.

ASSISTANT: Welcome, have a great day.