I cannot find her on my mobile contact list

That day, we several friends planned to have dinner outside. Emma and I are going downstairs.
"Hey, Hanna, could you give a call to my phone, I cannot find it now".
"Wow, you cannot find your phone again..."
"Could you please stop laughing? it's not funny now".
"OK...OK..."
1...2...3...minutes passed...
"Wow, I guess your phone went to outer space with mine", said by Emma with her such lovely smile.
"Well, I guess it would like to, but actually it is here in my hand", "Emma, you changed your number last month, right?"
"No. Did I?"
"I guess I remember something wrong, damn my memory!"
"You did not save my number?"
"How it is possible?!!... Ohh,I must recorded it in my free contact management software ", said by me, moving to my computer. "Please! You must be there!", thought by me.
"Right from the start, you were a thief..." Suddenly her phone ringing. It's Jane.
Emma picked up her phone.
"What's wrong with you two, half an hour passed. Where are you now?"
"On our way..."