What was the name again?

What is/was the name again?

Please remind me of the name that you provided. I'll have a look for your reservation now. What was the name again? I haven't found your bag anywhere, sir. I'll try making an announcement over the speaker, in case someone picked it up by accident. What's the name again?
See also: name, what

What was the name again?

Please tell me your name again. (More typical of a clerk than of someone just introduced.) Clerk: What was the name again? Bill: Bill. "What was the name again? I didn't write it down," confessed Fred.
See also: name, what