Could someone check these sentences and make them sound more natural? Please feel free to edit or make any changes you deem necessary.
1-We need the confidence (meaning peace of mind) of knowing that they will deliver the parcel on time.
2-Perhaps, after I have spoken with him, I can give you further information
3-If you are not in charge of this, please transfer this email to the appropriate department, or at least, point me in the right direction by telling me who might be able to help me.