TASK DEFINITION: Determine whether there has been any questions asked by the speaker in the dialogue or not. If there has been a question in the dialogue then the output Yes otherwise output No.
PROBLEM: Could I have the check , please ? Okay . I'll just be a minute .

SOLUTION: No

PROBLEM: Hello , could I speak to Allison , please ? I'm sorry ; he's out at the moment . When do you expect him back ? I think he'll be back in about an hour at least . Well , may I leave a message ? Yes , of course . Would you please ask him to call Chris when he gets back ? Ok . Does he know your number ? I'm afraid he doesn't . My mobile is 139- 2477 - 4026 . 13924774026 . All right . Thanks for calling . Oh , hang on , someone's at the door that may be him , please hold on .

SOLUTION: Yes

PROBLEM: May I please speak to Tom ? Tom has gone to lunch . I'll just try him again . Do you want me to have him give you a call ? No , but what time do you expect him back ? He should be back in about forty minutes .

SOLUTION:
Yes