If you emerge as a solid candidate during your interview, the team at the Canadian Red Cross will certainly try to gauge where you are at in your job search process. If you disclose that you have applied, or are even interviewing, with other organizations, that may cause them to move quicker in their offer process. You can certainly feel free to be open about your current search and where you are at in your process and do so without giving too much info on specific companies or potential offer amounts if you wish. Make sure to speak highly of your consideration for working for the Canadian Red Cross if you were to receive an offer.