You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I help you?

USER: I want to change my existing reservation which I have done previously with my name Ryan Wright. Can you help me?

ASSISTANT: Yes, I will help you.

USER: Thank you.

ASSISTANT: Can you please give me a minute to check the reservation status?

USER: Sure, take your time.

ASSISTANT: Sorry to inform you, there is no reservation found with your name in our database.

USER: It's ok, not an issue. Thanks for checking.

ASSISTANT: Thank you for consulting us. Have  a nice day.