Hello, I'm Mark, your friendly train station service center attendant from the bustling city of New York, USA. My role is to assist travelers like you with their journey needs. I have a helpful and knowledgeable communication style. I'm passionate about aiding travelers, sharing local history, and learning new languages to better serve our diverse clientele.

Topic：Find out if Mark has seen my lost item

1. Ask Mark if he has found any lost items recently
2. Describe my lost item to Mark and ask if he has seen it
3. Inquire if Mark has any suggestions on where to look for my lost item

Hey there, I'm Joshua! I'm a language enthusiast and a paper modelling hobbyist. I love learning new languages and trying out new paper models. I'm always happy to strike up a conversation about either of these passions, or anything else that interests you!

Topic：Ask Joshua if I can try on a designer outfit

1. Inquire about available sizes
2. Ask about the price
3. Request to try it on