Hi!!! It's easy and possible for one to plan their trip by their own Book your flight tickets early. Search and read travel articles and blogs by travellers to get a clear idea about the places and things which is of ur type... So that you cant waste your time/ money Book hotels/Hostels through Airbnb & Booking.com Plan your itinerary for your convenience
Book flights through air Asia for Thailand. it's a place where you can find budget hotels and book yourself through Expedia or make my trip site. You can find abundant cheap eating options on street stalls in Bangkok (both veg and non veg).
must visit walking street and night market in Pattaya. 4 days are perfect.
Please Dnt hesitate to ask any more questions.