4)
B: Yes, I will. I'll be in the Sol Café.
A: Will you be alone ?
B: Yes, I will.
A : what about cassia ?
B : She won't be here.
A: Where will she be ?
B: she'll be in Amsterdam with Henri.
5)
C: I will be in Amsterdam on 1st August
A: will you be alone ?
C: No, I won't. I will be with Henri.
A: Wich hotel will you be in ?
C: We will be in the Four Seasons.
A: be careful.
C: don't worry, we will be very, very careful.