Verb conjugation of "replace" in English

The connecting flight to Phuket was fully booked, and the connection to Krabi had five empty seats. The problem was that the boarding began in ten minutes and I did not even have a ticket.
I would gladly be your friend, but I must admit that I have little time for learning because of my work. Maybe we can talk now and see how it goes. If it goes well I can return home earlier.
Please send me your email address again because the message got into the Junk Mail filter and I've accidentally deleted it. As soon as you resend it please contact me again here on this site.