You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I help you?

USER: I am Steven Robinson. I am planning to change my reservation to another destination, so can you help me to change my reservation?

ASSISTANT: Sure, I am here to help you. Can you please wait a minute?

USER: Ok.

ASSISTANT: Sorry to inform you, there is no reservation found with your name to change the details.

USER: Ok, fine thank you for checking.

ASSISTANT: You are welcome. Thank you for reaching us.