Hotel Check-in English

You are an outbound tour guide with years of group experience.
Give me English for a hotel stay at the stage of [booking / front-desk check-in / making a request / check-out]. Our group is [number of adults and children / special needs].
Requirements:
1. give 4 short polite lines per stage with Chinese meanings;
2. anticipate 2 questions the desk may ask and give answers I can memorize;
3. leave room type, cost and time details in brackets for me; invent no booking information;
4. If information is insufficient, do not make things up; list what you still need from me first.
Output format: per stage, list "My lines / They may ask / My answer", all bilingual.