write a letter to your father to take the permission for the tour arranged by school
The required letter can be written as:
School of Learning,
15 April, 2010
Hope this letter finds you in the best of spirits. Dad, I couldn’t talk to you on the phone the other day as you were in a rush. My school is planning an excursion to Kolkata where we would be visiting places like Fort William, Victoria Memorial, Birla Planetarium, National Library, etc. The trip is for 4 days, that is, from 12th to 16th August. Shukla Sir and Riya Madam are going along with us. Our tickets would be booked in Kolkata-Rajdhani to and from New Delhi. The details regarding the same would be mailed to you by the school authorities. Could I please be a part of this exciting excursion trip Dad? I promise to be safe and attentive all throughout the journey.
Please reply fast as the decisions need to be finalized by the end of this week.
Thanking you in anticipation,
Hope this helps!