Hello.
user
Hello, how can I help you today?
assistant
I want to change my reservation due to sudden change in my trip. Can you assist me?
user
Sure, may I know your name to check further?
assistant
Eric Hall.
user
Please wait.
assistant
Sure.
user
Sorry, no reservation found on your given name.
assistant
No problem, thank you for searching.
user
Thank you for contacting us.
assistant