Good afternoon , need any help ?
neutral
user
My name is Liu Wei . I have booked a ticket to Boston three days before .
neutral
assistant
That's right and your flight number is CA621 .
neutral
user
But now I want to make a change . Please cancel this flight and transfer me to flight GB105 .
neutral
assistant
Excuse me , sir . Flight GB105 is one to Milan , are you sure of your change ?
neutral
user
Yes .
neutral
assistant