Dear Ngima,
This is to thank you for your perfect guidance during our trekking. All was well organised.
You and your team have the right idea what the word "service" means. Although we are not youngest ones being enthousiastic for trekking (65 and 66 years old) you have showed a good feeling and much patience for trekkers of our age. 

What we have appreciated also is your insight info in the complex world of Budhisme. This has given our trip an extra dimension. For a next trekking we will contact you for sure. 
Your expertise has been of great help for us in designing a trekking suitable for the "not so young trekking freinds"

For ever friends
Jan and Wil Kraal
jankraal@telfort.nl
Holland