You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you?

USER: I would like to change my recent reservation, will you help me with that?

ASSISTANT: Ok, can I know your name to check?

USER: Thank you for accepting my request, myself Timothy Collins.

ASSISTANT: Ok, please you. Please wait a moment.

USER: Ok, I will wait.

ASSISTANT: Sorry, there is no reservation been found on your name as per the reservation records.

USER: Ok, not an issue.

ASSISTANT: Thank you for choosing our agency.