Given the task definition, example input & output, solve the new input case.
Given a travel related situation, and given a specific question about the situation, summarize the question into a title
Example: The green carriage is of course first class. This would be our first preference with our 5 month old baby in lap, because of the presumably larger toilets for changing and whatnot. However, the baby being a Western white baby... will occasionally babble, screech or cry uncontrollably for a little while.

Speaking in terms of Japanese culture, should we avoid Green class tickets if we are taking aboard a potentially disruptive baby?

Output: Japanese train etiquette: Is it acceptable to take a baby in the Shinkansen Green Car?
A person gives a detailed description about a situation where they would prefer to travel on the Shinkansen Green Car but is doubtful if doing that would be against the Japanese train etiquette since they will be traveling with a baby. The question is summarized as Japanese train etiquette: Is it acceptable to take a baby in the Shinkansen Green Car? for easy indexing the next time someone searches for a similar phrase

New input case for you: My wife and I are going to Las Vegas on a business trip for 5 days. While we're there, we want to be able to keep in touch with mobile phones, and I'd like to spend about $10-20 per phone (including prepaid credit).

This is possible in the UK, where one can buy a Pay As You Go phone for less than 5 and a SIM Card with 10 credit on it. Sometimes you can get them bundled together for 10. That's the kind of price range I'm looking at.

A while ago when I went to Wyoming, a friend advised me to buy a prepaid Tracfone, but that worked out to cost more than $50.

What's the trick to getting cheap temporary phones in the USA?

Output:
How can I buy a pair of cheap phones in the USA