I would like to recommend Dai Li as a tour guide in Xian. He is one of the best guides I have come across in my travel in China. He is fluent in English, knowledgeable, professional and realiable.
We requested for a tour of Xian city by public bus as we wanted to have a feel of life in Xian. It was a challenging task for him as there were fourteen of us to look after. He handled it beautifully without losing anyone of us. We visited Qinglong (Green Dragon) temple to admire the cherry blossom, big wild goose pagoda, Xian city wall, drum tower, muslim quarter and the great mosque. That was an extraordinary and enjoyable trip for all of us.
Dai Li was also very kind and helpful too, he guided us to the high speed train station to take the bullet train to Mt Huashan for a two days tour on our own. We were lucky to have him as our guide in Xian.
He can be contacted at firstname.lastname@example.org.