customer: Hello, I am Richard Jackson. 
 agent: Hello, how may I support you now? 
 __ 
 agent: Sure, we are here to help you. Please wait a minute, I will check and get back to you. 
 customer: Ok. 
 agent: Thank you for waiting, there were no reservation matches with given name. 
 customer: Ok, Thank you for your information. 
 agent: Thank you for availing us.
customer: As my schedule of attending an press conference got postponed. Can you please help me in changing my existing reservation?