根据指定的主题和关键词，创作一篇电影剧本。
主题：爱情；关键词：咖啡馆，音乐家，失落。
Title: Lost Chords

FADE IN:

INT. COFFEE SHOP - DAY

A busy coffee shop buzzes with activity. A beautiful barista named LENA pours coffee as AMY, a successful businesswoman, rushes over to grab her order.

AMY
Thanks, Lena. You always make the best latte.

LENA
(smiling)
Anything for you, Amy.

Suddenly, a young musician named JASON enters carrying his guitar.

JASON
(excitedly)
Hey Lena, I've been practicing some new chords.

LENA
(giggling)
I can't wait to hear them.

As Jason sets up to play, Amy's attention is drawn to his familiar tune.

AMY
(to herself)
That melody sounds so familiar.

JASON
(pausing)
Are you okay, ma'am?

AMY
(startled)
Yeah, I'm fine. Just...lost in thought.

JASON
(smiling)
Ah, I get it. Sometimes the music takes me away too.

AMY
(relieved)
Yes, exactly!

Amy starts to frequent the coffee shop more often, drawn in by Jason's music. However, she's reluctant to strike up a conversation with him.

AMY
(to herself)
What am I doing? I can't just talk to him like that.

One day, Lena convinces Amy to sit down and enjoy the music. As she listens to Jason's soulful performance, she finally musters up the courage to talk to him.

AMY
(nervously)
That was amazing. Your music really speaks to me.

JASON
(smiling)
Thank you. It means a lot coming from you.

As their conversation continues, Amy and Jason find that they have a lot in common. They both love music, coffee, and have a shared sense of feeling lost.

AMY
(shyly)
I don't usually do this, but would you like to grab a drink sometime?

JASON
(excitedly)
Yes, I'd love that.

As they leave the coffee shop, Jason takes Amy's hand and they walk away together, lost in each other's company and the music.

FADE OUT.