customer: Hello,. 
 agent: Hello, how can I help you? 
 __ 
 agent: Ok, please wait a moment. I will check and get back to you. 
 customer: Sure. 
 agent: Thanks for being wait. Unfortunately there is no reservation found against your name. 
 customer: Ok, not an issue. Thank you for your service. 
 agent: Thank you and have a nice day.
customer: I am Linda Baker, owing to an emergency I want to change my existing reservation.