Formal phrases in emails

I got your email.

I need some help. --> I r_______ some help.

How do I get in touch with her? --> How do I c____ her?

Please make sure you arrive on time. --> Please e____ you arrive on time.

I'll give you the travel plans later. --> I'll p____ you with the i___ later.

Please let them know when you'll be arriving.--> Please i___ them about your arrival.

Could you talk a bit more about that?--> Could you e___ on that, please?