Provide the theme summaries for the following conversation: 

#Person1#: Are you looking forward to a trip to Canada, Julie?
#Person2#: I can't wait to see Canada, Jack. But I'm afraid of the journey. My husband insists on flying, but I want to sail. Planes make me nervous.
#Person1#: There is nothing to be frightened of. How many planes fly across the Atlantic every day?
#Person2#: I've no idea. Hundreds, I suppose.
#Person1#: And how often do you hear of a plane accident? Once or twice a year?
#Person2#: Yes, but planes fly so high and fast that one accident is enough.
#Person1#: Look, there are more road deaths per day than air deaths per year. Air transport is really safe compared with road transport.
#Person2#: I'd still prefer to go by sea. Ships may not travel fast but at least you can relax.
#Person1#: It's fine if you are a good sailor, but have you ever traveled far in a rough sea?
#Person2#: No, I've only been in a boat once. I sailed down the river on a sightseeing tour. But in any case, I'd rather be seasick than dead.'

Summary: 
Julie is scared about the plane and wishes to go by ship. But Jack comforts her that the probability of a plane accident is much smaller than the car accident. However, Julie still prefers a sailing trip.