dear sir/madam:

your advertisement for a sales and marketing assistant in the april 15 on 51job interested me bacause the position that you described sounds exactly like the kind of job i am seeking.
according to the advertisement ,your position required to provide general support to sales manager and sales team.

i feel that i am competent to meet the requirements. first of all, i work in marketing and sales teams about four years. let me introduce my work in briefly.

in charge of business development activities, such as exhibitions, workshops and advertisement.
provide daily executive support and assistance to manager, including travel and hotel reservation.
visiting customer. get their feedback and communicate with internal to following and handling.
specialize in training for internal and external. including sales skills and new product development.
report to manager sales data
accomplish all various tasks manager assigned.  
i would appreciate your time in reviewing my enclosed resume and if there is any additional information you require, please contact me. i would welcome an opportunity to meet with you for a personal interview.

with many thanks,

lisa