You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I assist you?

USER: Actually, my interview has been postponed, can you please help me to change my existing reservation?

ASSISTANT: Sure, can I know your name for checking the reservation?

USER: Sure, my name is Michelle Phillips.

ASSISTANT: Give me a minute.

USER: Sure, take your time.

ASSISTANT: Phillips, there is no reservation available on your name.

USER: Not an issue. Thank you for providing information.

ASSISTANT: You are welcome.