Buying clothes

(made by Carmen Luisa)
Complete the gaps with the words given.

Source: English File Internediate. Workbook: page 43.
   blue      cash      changing      credit      have      help      looking      receipt      size      try   
Shop-assistant: Can I you?
Shopper: No, I'm just , thanks.
(Pause)
Excuse me, have you got this shirt in ?
Shop-assistant: Yes, we have. What are you?
Shopper: Medium.
(Pause)
Could I it on, please?
Shop-assistant: Sure. The rooms are over there.
(Pause)
Is it OK?
Shopper: Yes, I like this one. I'll it.
Shop-assistant: Are you going to pay in ?
Shopper: No, by card.
Shop-assistant: That's fine. Here you are. The is in the bag.
Shopper: Thank you.