Hello.
Hello. How can I assist you?
 I want to change my recent reservation as my joining date got postponed. Can you help me in changing?
Sure, I will help you. May I know your name to check the reservation status?
Sure, My name is Patrick Johnson.
Please, wait for a moment.
Sure, I will wait for your response.
Thank you for waiting, there is no reservation found on your name to proceed for modification.
No worries, thank you for the information.
Thank you for approaching us.