CONFIRMPAYMENT
(
    [
    [(?I_WANT [(?make ?[a the that this] [payment reservation]) reserve ([purchase buy] ?[the a] ticket)] ?please) dtmf-1] {<choice "makePayment">}
    [dtmf-2] {<choice "mainMenu">}
    [dtmf-3] {<choice "done">}
    ]
)

I_WANT
[
(i want to)
(i would like to)
(i am looking forward to)
]