The interviewer is looking out for your key skills in relation to the job description so in a travel agency one of the key skills you should possess is showing good customer service and interpersonal communication because during the booking procedure of a holiday you may come into contact with people of all ages and different personalities. Adjacent to that a quick learner and an eager agile mind is necessary and also someone who can adapt easily to different scenarios. Being a well spirited team player is also a useful requisite as this will show an all round well grounded personality who should get on in any situation. Try and sell yourself in the best possible way by showing all-round strengths that are pertinent to the job role you have applied for.