text: Sara: I can't talk now, but we can write, ok?
  Tom: ok
  Tom: so how many days do u want to stay there?
  Sara: I'm free until 28th
  Sara: but I don't feel like spending all the hollidays there
  Sara: what about u?
  Tom: my schedule is flexible this month, I work when I want
  Tom: have u checked the flights?
  Sara: yeah, here's a good option, it would be 7 days in total <file_other>
  Tom: looks good but the flight is very early so either we sleep at the airport or we must there at night
  Tom: what about this? <file_other>
  Tom: the flight is  at 11, so actually we can even sleep e bit 
  Sara: yeah, makes sense!
  Sara: and what about the return?
  Tom: if u want to stay 7 days then we can be  back on the 26 <file_other>
  Sara: but it's ryanair! I hate ryanair!!!
  Sara: with this new size of the hand luggage we will have to pay for an extra luggage...
  Sara: but there's an option with Easy jet on the 25th... 
  Tom: for me fine;-)
  Sara: I'll buy the tickets tonight then
  Tom: cool!
target: Sara and Tom will go together on holidays. They will spend 6 days abroad. They found convenient flights for both of them.