Domains: Travel_15, Hotels_15, Flights_35

user: Could you find me some attractions in London, UK?

system: How about this historical landmark, 30 st mary axe (The gherkin)?

user: Sure, could you find me ahotel there too?

system: I found 10 options. How about the 5 star hotel 45 park lane?

user: Works for me. Could you find a round trip flight going there as well? I'd like to leave from philadelphia on the 1st of this month.

system: Okay, when do you want to return?

user: THe 12th of this month.

system: How about an american airlines flight with the departing flight leaving at 8:45 pm and the return flight leaving at 2 am. It costs $526 per ticket.

user: Could you find me 4 seats leaving on the 3rd of this month?

system: How about a delta airlines flight leaving at 4:20 am and returning at 4 pm local time? It's $552 per ticket.

user: Alright.

system: Do you need anything else?

user: Thanks, that's all I need

system: Have a good day.