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One possible version:
Dear Sir,
I'm planning a holiday to your city.I got some information about your hotel,but I still have some questions to ask.Would you be kind enough to reply to my e-mail?
I'm arriving in your city the day after tomorrow.And I plan to stay in your hotel for 5 days.Would you tell me how far your hotel is from the airport?And I'd like to know how I can get to your hotel.Also,I wonder whether you offer free breakfast.Last but not least,would you mind telling me whether there is a discount for a long stay?
Thanks for your time.I'm looking forward to your reply.
John