Detailed Instructions: Classify the given hotel review based on the sentiment it expresses into two classes: negative and positive.
Q: I never thought I'd be able to stay at a hotel and feel completely at home. I am a mother of two children, one of which has severe asthma and allergies. I have spent more time in hospital emergency rooms than my own living room for the past two and a half years. So when my sister was getting married in Chicago, I was extremely anxious. The front desk associate, Rosa, was wonderful. She told me that they have Allergy friendly rooms. No perfumes, no harsh cleaning chemicals, no dreaded "industry standard" feather pillows. I booked a room, but was still really worried. I shouldn't have been. Ethan breathed as easily in that beautiful room as he did in our own home. Maybe even a little better. They had an air purification system for our room. It smelled so fresh! While my husband took our daughter to the Big Bar for Nachos (she never stopped talking about how "totally cool" it was), I ordered room service for my son. The man who answered the phone was so patient and accommodating. My son has a lot of food allergies, so I was pretty much ordering off menu with specific details. That's always a little humbling, but the staff treated my order with the grace as though they did special orders all the time. I was actually able to enjoy my sister's wedding. The only problem with my stay is that it was too short. We're coming back for our first family vacation since Ethan was born. Thank you, Hyatt Regency Chicago, for making this family's visit possible and positive!!

A:
positive