Помогите, пжл, распределить предложения по порядку.

1. Can I help you?2. Do you have these shoes in size 38?3. Here you are. Would you like to try them on?4. Yes, please. They're a bit too small  - could I try 39?5. I'll go and check for you...6. I'm afraid we only have sizes 36 and 407. I'll leave it then. Thank you8. Thank you