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