Back to the passport issue. The latest UK passports don't have titles or any indication of marital status in them, just (line by line):
Type of document/country/passport number
Surname
First name(s)
Date of birth
Gender / Place of birth
Date passport issued/issuing authority
Date passport expires
Your signature (which obviously must match the firstname and surname name on the passport).
As others have said, travel tickets and passports have to have the same surname and first names on them. But I don't think anyone on boats/planes/trains cares too hoots about marital titles.
It's much simpler if hotel bookings have the same name as the name on the passport of the person who is paying the bill. (Usually, no-one checks but I've been asked to show my passport when arriving at a pre-booked hotel in nearby Belgium, of all places, as well as in more distant countries.)
Ideally, your hotel booking needs to have the same name and address as the name and address of the credit or debit card of the person who is paying the bill, otherwise you can get some funny looks.
But no-one at any hotel I've ever been to bothers about marital titles.