Could you do me a favor tonight? Yesterday I've lost my phone and I'm afraid I can't find it anywhere. At 10 pm I am gonna go to the club with my friends and I need to keep in touch with them. So I wonder if you would mind helping me by lending me your cellphone? I will really appreciate the help you can offer me and will be happy to return the favor when the opportunity arises.
Eternally yours, (name)