Hello.
user
Hello, how may I help you?
assistant
Due to some issues that occur in my trip I want to change the dates of journey, can you please help me in changing my ticket?
user
Ok, may I know your name please to proceed further?
assistant
My name is Robert Campbell.
user
There is no reservation found with your details, Robert.
assistant
Ok, that's fine, thank you for your information.
user
Thank you for choosing us.
assistant