You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I assist you today?

USER: Kenneth Taylor here. Due to some adjustments in my hometown, I just want to change my recent reservation.

ASSISTANT: Please give me a minute, I will check it out whether you reservation is existed or not.

USER: Ok, fine.

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

USER: That's fine, thank you for checking my details.

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