Hello. Jonathan White here.
user
Hello Jonathan, welcome to Global booking agency. How may I help you today?
assistant
 I want to do some changes in the existing reservation because my friends are not able to come on the those dates. Can you please help me for that?
user
Sure, I will help you on that. Please hold on for a moment to check your previous reservation status.
assistant
Ok.
user
Sorry Martin, there is no previous reservation available in our records. Would you like to ask us anything else?
assistant
Nothing.Thank you for the information.
user
Ok, thank you for reaching us, have a nice day.
assistant