Suggestion and Offer Dialogue

Sarah: "Hey, Bella, are you have a free time tonight?"

Bella: "I have, why?"

Sarah: "How about going dinner with Jane and Reina?"

Bella: "I don't think so, i have a stomachache right now."

Sarah: "Would you like some glass of warm water?"

Bella: "Sure, thank you."

Sarah: "No problem."

Bella: "I've been feeling this stomachache from last week. I took medicine too, but the pain didn't go away, what should I do?"

Sarah: "I suggest going to doctor. I think he'll know what happened to you."

Bella: "You're right, thanks for the suggestion."