adding

type Repository interface {
	FindTicket(context.Context, string, string) (string, *Ticket, error)
	CreateTicket(context.Context, *Ticket) (string, error)
}

type Service interface {
	CreateTicket(context.Context, *Ticket) (string, error)
}

type Ticket struct {
	Subject       string    `json:"subject"`
	RequesterName string    `json:"requester_name"`
	Description   string    `json:"description"`
	CreateDate    time.Time `json:"create_date"`
}