A dialogue between a shop keeper and a customer.

Shopkeeper: Good morning, Sir. What would you like?

Customer: I need a pair of shoes and two socks.

Shopkeeper: Here they are.

Customer: Thanks. Let me check. These shoes don't fit well. They're too tight.

Shopkeeper: Alright, I'll exchange them for you.

Customer: These fit nicely. Now, let me see the socks.

Shopkeeper: Here you go.

Customer: No, these won't work. I don't like the color.

Shopkeeper: Which color do you prefer, Sir?

Customer: Black.

Shopkeeper: Unfortunately, we don't have black in stock. However, I can show you a much better quality in a different color.

Customer: No, thank you. I'm not interested. How much is the total?

Shopkeeper: It's one thousand and seven hundred Taka only.

Customer: Here's the money.

Shopkeeper: Thank you.

Customer: Goodbye.

Shopkeeper: Goodbye.