Sure! Here is the completed text with the correct forms of the verbs:

1. They've all **cancelled** today's trains. How are we going to get home?
2. What's the first thing you want to do when we **reach** New York?
3. It's cold in Moscow, so **pack** some warm clothes.
4. You **book** the hotel room and I'll go and buy the train tickets.
5. Our plane has been **delayed** by four hours.
6. If we're quick, then maybe we can still **catch** the bus.

Let me know if you need any further assistance!