do you know about any possibility to dedicate a song on a show, concerto to my lost love?

Hey,
i’m from austria, lost my girl some weeks atrás because i lost fun in life and started to be depressed all the time, that was too much for her, she tried to help me out, but lost her eneregy.
James morrison will play in vienna in march, i wanted to go there with her. She’ll be there with her cousin.
My pergunta is: do you know about any possibility to dedicate a song on that show, concerto to her?
Can i write someone about that?
The last weeks i found out that she ist he one for me, and i’m working hard on myself to get back on track in life, but every night, doesn’t matter how great the dia was, i’m sad and really miss her.
If you know a way to help me out and dedicate a song to her on that concert, i’ll never forget that

Thank you,
Philipp