What does the "go" mean in the conversation?

[rogergx]

What does the "go" mean in the conversation?

Andy: How do you fancy going to a posh do in the West End, champagne reception, dinner and a taxi home—all free?
Charlotte: Oh, are you asking me on a date? Sounds romantic. Hmm, what's the catch?
Andy: No catch, honest! It is a work do though. And I really don‟t wanna go by myself.

 

[Rover_KE]

In your post, 'go' has its usual meaning.

If you mean 'What does 'do' mean?', Andy helpfully defines it for Charlotte in his first sentence.

A do is a party, dinner party, or other social event.
[mainly British, informal]
A friend of his is having a do in Stoke.
They always have all-night dos there.
Synonyms: party, gathering, function, social

(Collins)