Ellis improvement

Define API out for CMS so CMS can receive Alice's cancel request and process it in CMS side
Request: {
"bookingType": "cancel",
"hotelCode": "12234567",
"bookingCode": "K25022510401H01",
"transactionSetId": "A5053AC7FDAD45D2BAEB222E336467EF"
}

Response success: {
"transactionSetId": "A5053AC7FDAD45D2BAEB222E336467EF",
"isSuccess": true,
"errors": []
}
Response error: {
"transactionSetId": "A5053AC7FDAD45D2BAEB222E336467EF",
"isSuccess": false,
"errors": [ {
"errorCode": "E58745",
"errorMessage": "error message"
}
]
}