You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Kenneth Phillips on this side.

ASSISTANT: How can I assist you Phillips?

USER: I am here today to change my holiday location for my two days trip, could you please help me out?

ASSISTANT: Sure, please wait for a moment.

USER: Ok, please check with my existing reservation and revert back to me with available information.

ASSISTANT: Sorry Phillips, I could not find any reservation by your name in our database.

USER: Oh! That's fine, I may have booked my reservation and got confused with your agency. Thank you for checking anyways.

ASSISTANT: Thank you for reaching us.

USER: Sorry to trouble you. You are most welcome.